use devm_kmalloc replaces kmalloc
Signed-off-by: Lizhe <[email protected]>
---
drivers/net/wireless/atmel/at76c50x-usb.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/net/wireless/atmel/at76c50x-usb.c b/drivers/net/wireless/atmel/at76c50x-usb.c
index 009bca34ece3..f486ddb83d46 100644
--- a/drivers/net/wireless/atmel/at76c50x-usb.c
+++ b/drivers/net/wireless/atmel/at76c50x-usb.c
@@ -2444,7 +2444,7 @@ static int at76_probe(struct usb_interface *interface,
udev = usb_get_dev(interface_to_usbdev(interface));
- fwv = kmalloc(sizeof(*fwv), GFP_KERNEL);
+ fwv = devm_kmalloc(sizeof(*fwv), GFP_KERNEL);
if (!fwv) {
ret = -ENOMEM;
goto exit;
@@ -2535,7 +2535,6 @@ static int at76_probe(struct usb_interface *interface,
at76_delete_device(priv);
exit:
- kfree(fwv);
if (ret < 0)
usb_put_dev(udev);
return ret;
--
2.17.1
Hi Lizhe,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on wireless-next/main]
[also build test WARNING on wireless/main net-next/master net/master linus/master v6.2-rc3 next-20230113]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Lizhe/wireless-at76c50x-usb-c-Use-devm_kmalloc-replaces-kmalloc/20230113-221810
base: https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main
patch link: https://lore.kernel.org/r/20230113141231.71892-1-sensor1010%40163.com
patch subject: [PATCH v1] wireless/at76c50x-usb.c : Use devm_kmalloc replaces kmalloc
config: ia64-allyesconfig
compiler: ia64-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/0014c43a8d5f050965cc8fd562a8f0c21952f64b
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Lizhe/wireless-at76c50x-usb-c-Use-devm_kmalloc-replaces-kmalloc/20230113-221810
git checkout 0014c43a8d5f050965cc8fd562a8f0c21952f64b
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/net/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
All warnings (new ones prefixed by >>):
drivers/net/wireless/atmel/at76c50x-usb.c: In function 'at76_probe':
>> drivers/net/wireless/atmel/at76c50x-usb.c:2447:28: warning: passing argument 1 of 'devm_kmalloc' makes pointer from integer without a cast [-Wint-conversion]
2447 | fwv = devm_kmalloc(sizeof(*fwv), GFP_KERNEL);
| ^~~~~~~~~~~~
| |
| long unsigned int
In file included from include/linux/usb.h:19,
from drivers/net/wireless/atmel/at76c50x-usb.c:31:
include/linux/device.h:200:35: note: expected 'struct device *' but argument is of type 'long unsigned int'
200 | void *devm_kmalloc(struct device *dev, size_t size, gfp_t gfp) __malloc;
| ~~~~~~~~~~~~~~~^~~
drivers/net/wireless/atmel/at76c50x-usb.c:2447:15: error: too few arguments to function 'devm_kmalloc'
2447 | fwv = devm_kmalloc(sizeof(*fwv), GFP_KERNEL);
| ^~~~~~~~~~~~
include/linux/device.h:200:7: note: declared here
200 | void *devm_kmalloc(struct device *dev, size_t size, gfp_t gfp) __malloc;
| ^~~~~~~~~~~~
vim +/devm_kmalloc +2447 drivers/net/wireless/atmel/at76c50x-usb.c
2432
2433 static int at76_probe(struct usb_interface *interface,
2434 const struct usb_device_id *id)
2435 {
2436 int ret;
2437 struct at76_priv *priv;
2438 struct fwentry *fwe;
2439 struct usb_device *udev;
2440 int op_mode;
2441 int need_ext_fw = 0;
2442 struct mib_fw_version *fwv = NULL;
2443 int board_type = (int)id->driver_info;
2444
2445 udev = usb_get_dev(interface_to_usbdev(interface));
2446
> 2447 fwv = devm_kmalloc(sizeof(*fwv), GFP_KERNEL);
2448 if (!fwv) {
2449 ret = -ENOMEM;
2450 goto exit;
2451 }
2452
2453 /* Load firmware into kernel memory */
2454 fwe = at76_load_firmware(udev, board_type);
2455 if (!fwe) {
2456 ret = -ENOENT;
2457 goto exit;
2458 }
2459
2460 op_mode = at76_get_op_mode(udev);
2461
2462 at76_dbg(DBG_DEVSTART, "opmode %d", op_mode);
2463
2464 /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ???
2465 we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */
2466
2467 if (op_mode == OPMODE_HW_CONFIG_MODE) {
2468 dev_err(&interface->dev,
2469 "cannot handle a device in HW_CONFIG_MODE\n");
2470 ret = -EBUSY;
2471 goto exit;
2472 }
2473
2474 if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH
2475 && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) {
2476 /* download internal firmware part */
2477 dev_printk(KERN_DEBUG, &interface->dev,
2478 "downloading internal firmware\n");
2479 ret = at76_load_internal_fw(udev, fwe);
2480 if (ret < 0) {
2481 dev_err(&interface->dev,
2482 "error %d downloading internal firmware\n",
2483 ret);
2484 }
2485 goto exit;
2486 }
2487
2488 /* Internal firmware already inside the device. Get firmware
2489 * version to test if external firmware is loaded.
2490 * This works only for newer firmware, e.g. the Intersil 0.90.x
2491 * says "control timeout on ep0in" and subsequent
2492 * at76_get_op_mode() fail too :-( */
2493
2494 /* if version >= 0.100.x.y or device with built-in flash we can
2495 * query the device for the fw version */
2496 if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100)
2497 || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) {
2498 ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv));
2499 if (ret < 0 || (fwv->major | fwv->minor) == 0)
2500 need_ext_fw = 1;
2501 } else
2502 /* No way to check firmware version, reload to be sure */
2503 need_ext_fw = 1;
2504
2505 if (need_ext_fw) {
2506 dev_printk(KERN_DEBUG, &interface->dev,
2507 "downloading external firmware\n");
2508
2509 ret = at76_load_external_fw(udev, fwe);
2510 if (ret < 0)
2511 goto exit;
2512
2513 /* Re-check firmware version */
2514 ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv));
2515 if (ret < 0) {
2516 dev_err(&interface->dev,
2517 "error %d getting firmware version\n", ret);
2518 goto exit;
2519 }
2520 }
2521
2522 priv = at76_alloc_new_device(udev);
2523 if (!priv) {
2524 ret = -ENOMEM;
2525 goto exit;
2526 }
2527
2528 usb_set_intfdata(interface, priv);
2529
2530 memcpy(&priv->fw_version, fwv, sizeof(struct mib_fw_version));
2531 priv->board_type = board_type;
2532
2533 ret = at76_init_new_device(priv, interface);
2534 if (ret < 0)
2535 at76_delete_device(priv);
2536
2537 exit:
2538 if (ret < 0)
2539 usb_put_dev(udev);
2540 return ret;
2541 }
2542
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
Hi Lizhe,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on wireless-next/main]
[also build test ERROR on wireless/main net-next/master net/master linus/master v6.2-rc3 next-20230113]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Lizhe/wireless-at76c50x-usb-c-Use-devm_kmalloc-replaces-kmalloc/20230113-221810
base: https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main
patch link: https://lore.kernel.org/r/20230113141231.71892-1-sensor1010%40163.com
patch subject: [PATCH v1] wireless/at76c50x-usb.c : Use devm_kmalloc replaces kmalloc
config: i386-allmodconfig
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/0014c43a8d5f050965cc8fd562a8f0c21952f64b
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Lizhe/wireless-at76c50x-usb-c-Use-devm_kmalloc-replaces-kmalloc/20230113-221810
git checkout 0014c43a8d5f050965cc8fd562a8f0c21952f64b
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/net/wireless/atmel/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
All errors (new ones prefixed by >>):
>> drivers/net/wireless/atmel/at76c50x-usb.c:2447:45: error: too few arguments to function call, expected 3, have 2
fwv = devm_kmalloc(sizeof(*fwv), GFP_KERNEL);
~~~~~~~~~~~~ ^
include/linux/device.h:200:7: note: 'devm_kmalloc' declared here
void *devm_kmalloc(struct device *dev, size_t size, gfp_t gfp) __malloc;
^
1 error generated.
vim +2447 drivers/net/wireless/atmel/at76c50x-usb.c
2432
2433 static int at76_probe(struct usb_interface *interface,
2434 const struct usb_device_id *id)
2435 {
2436 int ret;
2437 struct at76_priv *priv;
2438 struct fwentry *fwe;
2439 struct usb_device *udev;
2440 int op_mode;
2441 int need_ext_fw = 0;
2442 struct mib_fw_version *fwv = NULL;
2443 int board_type = (int)id->driver_info;
2444
2445 udev = usb_get_dev(interface_to_usbdev(interface));
2446
> 2447 fwv = devm_kmalloc(sizeof(*fwv), GFP_KERNEL);
2448 if (!fwv) {
2449 ret = -ENOMEM;
2450 goto exit;
2451 }
2452
2453 /* Load firmware into kernel memory */
2454 fwe = at76_load_firmware(udev, board_type);
2455 if (!fwe) {
2456 ret = -ENOENT;
2457 goto exit;
2458 }
2459
2460 op_mode = at76_get_op_mode(udev);
2461
2462 at76_dbg(DBG_DEVSTART, "opmode %d", op_mode);
2463
2464 /* we get OPMODE_NONE with 2.4.23, SMC2662W-AR ???
2465 we get 204 with 2.4.23, Fiberline FL-WL240u (505A+RFMD2958) ??? */
2466
2467 if (op_mode == OPMODE_HW_CONFIG_MODE) {
2468 dev_err(&interface->dev,
2469 "cannot handle a device in HW_CONFIG_MODE\n");
2470 ret = -EBUSY;
2471 goto exit;
2472 }
2473
2474 if (op_mode != OPMODE_NORMAL_NIC_WITH_FLASH
2475 && op_mode != OPMODE_NORMAL_NIC_WITHOUT_FLASH) {
2476 /* download internal firmware part */
2477 dev_printk(KERN_DEBUG, &interface->dev,
2478 "downloading internal firmware\n");
2479 ret = at76_load_internal_fw(udev, fwe);
2480 if (ret < 0) {
2481 dev_err(&interface->dev,
2482 "error %d downloading internal firmware\n",
2483 ret);
2484 }
2485 goto exit;
2486 }
2487
2488 /* Internal firmware already inside the device. Get firmware
2489 * version to test if external firmware is loaded.
2490 * This works only for newer firmware, e.g. the Intersil 0.90.x
2491 * says "control timeout on ep0in" and subsequent
2492 * at76_get_op_mode() fail too :-( */
2493
2494 /* if version >= 0.100.x.y or device with built-in flash we can
2495 * query the device for the fw version */
2496 if ((fwe->fw_version.major > 0 || fwe->fw_version.minor >= 100)
2497 || (op_mode == OPMODE_NORMAL_NIC_WITH_FLASH)) {
2498 ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv));
2499 if (ret < 0 || (fwv->major | fwv->minor) == 0)
2500 need_ext_fw = 1;
2501 } else
2502 /* No way to check firmware version, reload to be sure */
2503 need_ext_fw = 1;
2504
2505 if (need_ext_fw) {
2506 dev_printk(KERN_DEBUG, &interface->dev,
2507 "downloading external firmware\n");
2508
2509 ret = at76_load_external_fw(udev, fwe);
2510 if (ret < 0)
2511 goto exit;
2512
2513 /* Re-check firmware version */
2514 ret = at76_get_mib(udev, MIB_FW_VERSION, fwv, sizeof(*fwv));
2515 if (ret < 0) {
2516 dev_err(&interface->dev,
2517 "error %d getting firmware version\n", ret);
2518 goto exit;
2519 }
2520 }
2521
2522 priv = at76_alloc_new_device(udev);
2523 if (!priv) {
2524 ret = -ENOMEM;
2525 goto exit;
2526 }
2527
2528 usb_set_intfdata(interface, priv);
2529
2530 memcpy(&priv->fw_version, fwv, sizeof(struct mib_fw_version));
2531 priv->board_type = board_type;
2532
2533 ret = at76_init_new_device(priv, interface);
2534 if (ret < 0)
2535 at76_delete_device(priv);
2536
2537 exit:
2538 if (ret < 0)
2539 usb_put_dev(udev);
2540 return ret;
2541 }
2542
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
On Fri, Jan 13, 2023 at 06:12:31AM -0800, Lizhe wrote:
> use devm_kmalloc replaces kmalloc
No, it is not.
>
> Signed-off-by: Lizhe <[email protected]>
> ---
> drivers/net/wireless/atmel/at76c50x-usb.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/wireless/atmel/at76c50x-usb.c b/drivers/net/wireless/atmel/at76c50x-usb.c
> index 009bca34ece3..f486ddb83d46 100644
> --- a/drivers/net/wireless/atmel/at76c50x-usb.c
> +++ b/drivers/net/wireless/atmel/at76c50x-usb.c
> @@ -2444,7 +2444,7 @@ static int at76_probe(struct usb_interface *interface,
>
> udev = usb_get_dev(interface_to_usbdev(interface));
>
> - fwv = kmalloc(sizeof(*fwv), GFP_KERNEL);
> + fwv = devm_kmalloc(sizeof(*fwv), GFP_KERNEL);
> if (!fwv) {
> ret = -ENOMEM;
> goto exit;
> @@ -2535,7 +2535,6 @@ static int at76_probe(struct usb_interface *interface,
> at76_delete_device(priv);
>
> exit:
> - kfree(fwv);
> if (ret < 0)
> usb_put_dev(udev);
> return ret;
> --
> 2.17.1
>