From: Dave Jones <davej@redhat.com>
Date: Thu, 29 May 2014 19:11:30 +0000 (-0400)
Subject: block: remove dead code in scsi_ioctl:blk_verify_command
X-Git-Tag: v3.16-rc1~30^2~49^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=da52f22fa924b4a21d8e11fbfd3eeebd7a90a366;p=platform%2Fkernel%2Flinux-exynos.git

block: remove dead code in scsi_ioctl:blk_verify_command

filter gets assigned the address of blk_default_cmd_filter on
entry to this function, so the !filter condition can never be true.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
---

diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 2648797..9c28a5b 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -205,10 +205,6 @@ int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm)
 	if (capable(CAP_SYS_RAWIO))
 		return 0;
 
-	/* if there's no filter set, assume we're filtering everything out */
-	if (!filter)
-		return -EPERM;
-
 	/* Anybody who can open the device can do a read-safe command */
 	if (test_bit(cmd[0], filter->read_ok))
 		return 0;