ath9k: dfs_debug fix possible NULL dereference
authorJanusz Dziedzic <janusz.dziedzic@tieto.com>
Fri, 1 Nov 2013 20:05:28 +0000 (21:05 +0100)
committerJohn W. Linville <linville@tuxdriver.com>
Mon, 11 Nov 2013 19:42:43 +0000 (14:42 -0500)
commit4be6718c669bce10e9f709e2be68db2c5e22c4f0
treed9716243b7813a798518a1e82f81eb958d39a51e
parent87eb01679a9084bc9a4ba3c92c5692def116fffc
ath9k: dfs_debug fix possible NULL dereference

Fix possible NULL (sc->dfs_detector) pointer dereference.

Detected by Smatch:
drivers/net/wireless/ath/ath9k/dfs_debug.c:67 read_file_dfs()
error: we previously assumed 'sc->dfs_detector' could be null (see line 47)

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
drivers/net/wireless/ath/ath9k/dfs_debug.c