From: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Date: Tue, 2 Aug 2016 11:19:28 +0000 (+0300)
Subject: ath5k: fix EEPROM dumping via debugfs
X-Git-Tag: v4.9.8~1241^2~176^2~63
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=af8a9a67c3466f70ab28a112d18eb5d327d40ca2;p=platform%2Fkernel%2Flinux-rpi3.git

ath5k: fix EEPROM dumping via debugfs

EEPROM size calculated in 16-bit words, so we should take into account
this fact during buffer allocation.

CC: Jiri Slaby <jirislaby@gmail.com>
CC: Nick Kossifidis <mickflemm@gmail.com>
CC: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---

diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c
index 929d7cc..4f8d9ed 100644
--- a/drivers/net/wireless/ath/ath5k/debug.c
+++ b/drivers/net/wireless/ath/ath5k/debug.c
@@ -909,7 +909,7 @@ static int open_file_eeprom(struct inode *inode, struct file *file)
 	struct ath5k_hw *ah = inode->i_private;
 	bool res;
 	int i, ret;
-	u32 eesize;
+	u32 eesize;	/* NB: in 16-bit words */
 	u16 val, *buf;
 
 	/* Get eeprom size */
@@ -932,7 +932,7 @@ static int open_file_eeprom(struct inode *inode, struct file *file)
 
 	/* Create buffer and read in eeprom */
 
-	buf = vmalloc(eesize);
+	buf = vmalloc(eesize * 2);
 	if (!buf) {
 		ret = -ENOMEM;
 		goto err;
@@ -952,7 +952,7 @@ static int open_file_eeprom(struct inode *inode, struct file *file)
 	}
 
 	ep->buf = buf;
-	ep->len = i;
+	ep->len = eesize * 2;
 
 	file->private_data = (void *)ep;