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(parent: 01bf0b6) | patch
gpio: potential null dereference
authorDan Carpenter <error27@gmail.com>
Tue, 27 Apr 2010 21:12:03 +0000 (14:12 -0700)
committerGrant Likely <grant.likely@secretlab.ca>
Wed, 28 Apr 2010 06:50:01 +0000 (00:50 -0600)
commit3913fd5ed42c990c20036ef5c90e7987a9dd1ad1
treea3f4236246c3ffd65d71571c1f41615c3f4e24fctree | snapshot (tar.gz zip)
parent01bf0b64579ead8a82e7cfc32ae44bc667e7ad0fcommit | diff
gpio: potential null dereference

Smatch found a potential null dereference in gpio_setup_irq().  The
"pdesc" variable is allocated with idr_find() that can return NULL.  If
gpio_setup_irq() is called with 0 as gpio_flags and "pdesc" is null, it
would OOPs here.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
drivers/gpio/gpiolib.c diff | blob | blame | history