[PATCH] kexec warning fix

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

Signed-off-by: Roland McGrath <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Roland McGrath 2006-09-29 02:00:39 -07:00 • committed by Linus Torvalds
commit 0b4a8a789a

View file

@ -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);
}
}