2018-12-19 20:10:49

by Colin King

Subject: [PATCH] staging: wilc1000: fix missing read_write setting when reading data

From: Colin Ian King <[email protected]>

Currently the cmd.read_write setting is not initialized so it contains
garbage from the stack. Fix this by setting it to 0 to indicate a
read is required.

Detected by CoverityScan, CID#1357925 ("Uninitialized scalar variable")

Fixes: c5c77ba18ea6 ("staging: wilc1000: Add SDIO/SPI 802.11 driver")
Signed-off-by: Colin Ian King <[email protected]>
---
drivers/staging/wilc1000/wilc_sdio.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/staging/wilc1000/wilc_sdio.c b/drivers/staging/wilc1000/wilc_sdio.c
index 27fdfbdda5c0..e2f739fef21c 100644
--- a/drivers/staging/wilc1000/wilc_sdio.c
+++ b/drivers/staging/wilc1000/wilc_sdio.c
@@ -861,6 +861,7 @@ static int sdio_read_int(struct wilc *wilc, u32 *int_status)
if (!sdio_priv->irq_gpio) {
int i;

+ cmd.read_write = 0;
cmd.function = 1;
cmd.address = 0x04;
cmd.data = 0;
--
2.19.1

2018-12-20 08:21:33

by Ajay Singh

Subject: Re: [PATCH] staging: wilc1000: fix missing read_write setting when reading data

On 12/19/2018 10:00 PM, Colin King wrote:
> From: Colin Ian King <[email protected]>
>
> Currently the cmd.read_write setting is not initialized so it contains
> garbage from the stack. Fix this by setting it to 0 to indicate a
> read is required.
>
> Detected by CoverityScan, CID#1357925 ("Uninitialized scalar variable")
>
> Fixes: c5c77ba18ea6 ("staging: wilc1000: Add SDIO/SPI 802.11 driver")

Acked-by: Ajay Singh <[email protected]>
> Signed-off-by: Colin Ian King <[email protected]>
> ---
> drivers/staging/wilc1000/wilc_sdio.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/staging/wilc1000/wilc_sdio.c b/drivers/staging/wilc1000/wilc_sdio.c
> index 27fdfbdda5c0..e2f739fef21c 100644
> --- a/drivers/staging/wilc1000/wilc_sdio.c
> +++ b/drivers/staging/wilc1000/wilc_sdio.c
> @@ -861,6 +861,7 @@ static int sdio_read_int(struct wilc *wilc, u32 *int_status)
> if (!sdio_priv->irq_gpio) {
> int i;
>
> + cmd.read_write = 0;
> cmd.function = 1;
> cmd.address = 0x04;
> cmd.data = 0;
>