shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-07 19:30:30 +09:00
Code Issues Packages Projects Releases Wiki Activity

ath5k: fix memory leak on buf on failed eeprom read

Browse Source 
[ Upstream commit 8fed6823e0 ]

The AR5K_EEPROM_READ macro returns with -EIO if a read error
occurs causing a memory leak on the allocated buffer buf. Fix
this by explicitly calling ath5k_hw_nvram_read and exiting on
the via the freebuf label that performs the necessary free'ing
of buf when a read error occurs.

Detected by CoverityScan, CID#1248782 ("Resource Leak")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Colin Ian King
2017-05-03 15:26:00 +01:00
committed by Greg Kroah-Hartman
parent e88f1e3a8b
commit acf6bfef15
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/net/wireless/ath/ath5k/debug.c
View File

@@ -939,7 +939,10 @@ static int open_file_eeprom(struct inode *inode, struct file *file)
}
for (i = 0; i < eesize; ++i) {
AR5K_EEPROM_READ(i, val);
if (!ath5k_hw_nvram_read(ah, i, &val)) {
ret = -EIO;
goto freebuf;
}
buf[i] = val;
}