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[PATCH] kexec warning fix

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This fixes a couple of compiler warnings, and adds paranoia checks as well.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Roland McGrath 2006-09-29 02:00:39 -07:00 • committed by Linus Torvalds
parent 3171a0305d
commit 0b4a8a789a
1 changed files with 4 additions and 2 deletions
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6
kernel/kexec.c
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@ -995,7 +995,8 @@ asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
image = xchg(dest_image, image);
out:
xchg(&kexec_lock, 0); /* Release the mutex */
locked = xchg(&kexec_lock, 0); /* Release the mutex */
BUG_ON(!locked);
kimage_free(image);
return result;
@ -1061,7 +1062,8 @@ void crash_kexec(struct pt_regs *regs)
machine_crash_shutdown(&fixed_regs);
machine_kexec(kexec_crash_image);
}
xchg(&kexec_lock, 0);
locked = xchg(&kexec_lock, 0);
BUG_ON(!locked);
}
}