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ath9k: Fix bug in reading debugfs file 'rcstat'

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The rate table would not have been chosen before the interface
has been brought up. Reading 'rcstat' in this case would result
in an oops, fix this.

Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith 2009-03-09 09:32:01 +05:30 committed by John W. Linville
parent c37452b068
commit 62b4fb66c5
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/ath9k/debug.c
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@ -322,6 +322,9 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
{
struct ath_softc *sc = file->private_data;
if (sc->cur_rate_table == NULL)
return 0;
if (conf_is_ht(&sc->hw->conf))
return ath_read_file_stat_11n_rc(file, user_buf, count, ppos);
else