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staging: wilc1000: fixes potential null dereference 'wid.val'

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This patch fixes the error reported by smatch.
 - Handle_ListenStateExpired() error: potential null dereference 'wid.val'
If kmalloc failed, referenced to a NULL pointer.

Signed-off-by: Leo Kim <leo.kim@atmel.com>
Signed-off-by: Glen Lee <glen.lee@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Leo Kim 2015-12-21 14:18:24 +09:00 committed by Greg Kroah-Hartman
parent 369a1d3bd3
commit 653bb46301
1 changed files with 3 additions and 1 deletions
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4
drivers/staging/wilc1000/host_interface.c
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@ -2635,8 +2635,10 @@ static u32 Handle_ListenStateExpired(struct host_if_drv *hif_drv,
wid.size = 2;
wid.val = kmalloc(wid.size, GFP_KERNEL);
if (!wid.val)
if (!wid.val) {
PRINT_ER("Failed to allocate memory\n");
return -ENOMEM;
}
wid.val[0] = u8remain_on_chan_flag;
wid.val[1] = FALSE_FRMWR_CHANNEL;