isdn: guard against a potential NULL pointer dereference in old_capi_manufacturer()
authorJesper Juhl <jesper.juhl@gmail.com>
Tue, 16 Oct 2007 08:27:52 +0000 (01:27 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Tue, 16 Oct 2007 16:43:10 +0000 (09:43 -0700)
commite8a285b7b10029c3da7e9bbaa1659e7e08178912
treea97878e17221c2686e91dd8cfea2b03dbde7d855
parentb1b2e7cf4a9742f61d76fcb419b1fd13159876a5
isdn: guard against a potential NULL pointer dereference in old_capi_manufacturer()

In drivers/isdn/capi/kcapi.c::old_capi_manufacturer(), if the call to
get_capi_ctr_by_nr(ldef.contr); in line 823 returns NULL, then we'll be
dereferencing a NULL pointer in the very next line.

(Found by Coverity checker as bug #402)

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Acked-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
drivers/isdn/capi/kcapi.c