From: John W. Linville <linville@tuxdriver.com>
Date: Tue, 24 Aug 2010 19:27:34 +0000 (-0400)
Subject: ath5k: check return value of ieee80211_get_tx_rate
X-Git-Tag: v2.6.36-rc4~87^2~14^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d8e1ba76d619dbc0be8fbeee4e6c683b5c812d3a;p=pandora-kernel.git

ath5k: check return value of ieee80211_get_tx_rate

This avoids a NULL pointer dereference as reported here:

	https://bugzilla.redhat.com/show_bug.cgi?id=625889

When the WARN condition is hit in ieee80211_get_tx_rate, it will return
NULL.  So, we need to check the return value and avoid dereferencing it
in that case.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Cc: stable@kernel.org
Acked-by: Bob Copeland <me@bobcopeland.com>
---

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