2014-06-02 05:07:43

by Daeseok Youn

[permalink] [raw]
Subject: [PATCH 3/6] staging: dgap: remove bogus null test in dgap_tty_init()

- The channels array were set to NULL in dgap_found_board().
- Removes redundant null check for channels array in for loop,
if one of the channel cannot be allocated, dgap_tty_init() just returns
an error.

Signed-off-by: Daeseok Youn <[email protected]>
---
drivers/staging/dgap/dgap.c | 13 ++++---------
1 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/dgap/dgap.c b/drivers/staging/dgap/dgap.c
index 5556a6e..fcfa061 100644
--- a/drivers/staging/dgap/dgap.c
+++ b/drivers/staging/dgap/dgap.c
@@ -1379,12 +1379,10 @@ static int dgap_tty_init(struct board_t *brd)
* when the driver was first loaded.
*/
for (i = 0; i < brd->nasync; i++) {
- if (!brd->channels[i]) {
- brd->channels[i] =
- kzalloc(sizeof(struct channel_t), GFP_KERNEL);
- if (!brd->channels[i])
- return -ENOMEM;
- }
+ brd->channels[i] =
+ kzalloc(sizeof(struct channel_t), GFP_KERNEL);
+ if (!brd->channels[i])
+ return -ENOMEM;
}

ch = brd->channels[0];
@@ -1398,9 +1396,6 @@ static int dgap_tty_init(struct board_t *brd)
/* Set up channel variables */
for (i = 0; i < brd->nasync; i++, ch = brd->channels[i], bs++) {

- if (!brd->channels[i])
- continue;
-
spin_lock_init(&ch->ch_lock);

/* Store all our magic numbers */
--
1.7.1