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ath9k: Check for root debugfs file

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Creation of the root debugfs file could have failed
for some reason, check properly before proceeding in this
case.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2009-03-30 15:28:42 +05:30 committed by John W. Linville
parent 5cc93992cc
commit 7dd5874859
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/ath9k/debug.c
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@ -498,6 +498,9 @@ int ath9k_init_debug(struct ath_softc *sc)
{
sc->debug.debug_mask = ath9k_debug;
if (!ath9k_debugfs_root)
return -ENOENT;
sc->debug.debugfs_phy = debugfs_create_dir(wiphy_name(sc->hw->wiphy),
ath9k_debugfs_root);
if (!sc->debug.debugfs_phy)