From: Eric Andersen <andersen@codepoet.org>
Date: Tue, 6 Mar 2001 19:35:58 +0000 (-0000)
Subject: Bug 1110 reported that the LOOP_GET_STATUS ioctl apparently returnes non-zero
X-Git-Tag: 0_50~115
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=1a046d5f9dd627711a6d212963beae3354b68374;hp=138ece09b5993debb472aa590999ae2221973f5a;p=oweals%2Fbusybox.git

Bug 1110 reported that the LOOP_GET_STATUS ioctl apparently returnes non-zero
error messages, contrary to the documentation.  Whatever.  This patch from
zhaoway <zw@debian.org> looks safe enough.
 -Erik
---

diff --git a/utility.c b/utility.c
index 62af4a59f..2d27596e0 100644
--- a/utility.c
+++ b/utility.c
@@ -1507,7 +1507,7 @@ extern char *find_unused_loop_device(void)
 		sprintf(dev, "/dev/loop%d", i);
 		if (stat(dev, &statbuf) == 0 && S_ISBLK(statbuf.st_mode)) {
 			if ((fd = open(dev, O_RDONLY)) >= 0) {
-				if (ioctl(fd, LOOP_GET_STATUS, &loopinfo) == -1) {
+				if (ioctl(fd, LOOP_GET_STATUS, &loopinfo) != 0) {
 					if (errno == ENXIO) {	/* probably free */
 						close(fd);
 						return strdup(dev);