Messages in this thread Patch in this message | | | From | Roland McGrath <> | Subject | [PATCH] kexec warning fix | Date | Wed, 16 Aug 2006 02:01:05 -0700 (PDT) |
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This fixes a couple of compiler warnings, and adds paranoia checks to boot.
Signed-off-by: Roland McGrath <roland@redhat.com> --- kernel/kexec.c | 6 ++++-- 1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/kernel/kexec.c b/kernel/kexec.c index 50087ec..989c7cd 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -995,7 +995,8 @@ asmlinkage long sys_kexec_load(unsigned 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); } } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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