Author: dim
Date: Sun Aug 5 17:23:47 2012
New Revision: 239074
URL: http://svn.freebsd.org/changeset/base/239074
Log:
In usr.sbin/ctladm/ctladm.c, function cctl_error_inject(), initialize
the 'retval' variable to zero, to avoid returning garbage in several
cases.
This fixes the following clang 3.2 warnings:
usr.sbin/ctladm/ctladm.c:1234:6: error: variable 'retval' is used
uninitialized whenever 'if' condition is false
[-Werror,-Wsometimes-uninitialized]
if (ioctl(fd, CTL_ERROR_INJECT, &err_desc) == -1) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
usr.sbin/ctladm/ctladm.c:1243:10: note: uninitialized use occurs here
return (retval);
^~~~~~
usr.sbin/ctladm/ctladm.c:1234:2: note: remove the 'if' if its condition is
always true
if (ioctl(fd, CTL_ERROR_INJECT, &err_desc) == -1) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
usr.sbin/ctladm/ctladm.c:1161:7: error: variable 'retval' is used
uninitialized whenever 'if' condition is false
[-Werror,-Wsometimes-uninitialized]
if (ioctl(fd, CTL_ERROR_INJECT_DELETE, &err_desc) == -1) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
usr.sbin/ctladm/ctladm.c:1243:10: note: uninitialized use occurs here
return (retval);
^~~~~~
usr.sbin/ctladm/ctladm.c:1161:3: note: remove the 'if' if its condition is
always true
if (ioctl(fd, CTL_ERROR_INJECT_DELETE, &err_desc) == -1) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
usr.sbin/ctladm/ctladm.c:1029:12: note: initialize the variable 'retval' to
silence this warning
int retval;
^
= 0
MFC after: 1 week
Modified:
head/usr.sbin/ctladm/ctladm.c
Modified: head/usr.sbin/ctladm/ctladm.c
==============================================================================
--- head/usr.sbin/ctladm/ctladm.c Sun Aug 5 17:04:58 2012
(r239073)
+++ head/usr.sbin/ctladm/ctladm.c Sun Aug 5 17:23:47 2012
(r239074)
@@ -1026,7 +1026,7 @@ static int
cctl_error_inject(int fd, uint32_t target, uint32_t lun, int argc, char
**argv,
char *combinedopt)
{
- int retval;
+ int retval = 0;
struct ctl_error_desc err_desc;
uint64_t lba = 0;
uint32_t len = 0;
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