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authorBorislav Petkov <borislav.petkov@amd.com>2010-03-09 22:38:48 +0300
committerBorislav Petkov <borislav.petkov@amd.com>2010-03-22 18:33:31 +0300
commit5b89d2f9ace1970324facc68ca9b8fae19ce8096 (patch)
treea692a753f4a836e651567ebf40602e0bcaf9d72b /drivers/edac
parent220bf991b0366cc50a94feede3d7341fa5710ee4 (diff)
downloadlinux-5b89d2f9ace1970324facc68ca9b8fae19ce8096.tar.xz
edac, mce: Filter out invalid values
Print the CPU associated with the error only when the field is valid. Cc: <stable@kernel.org> # .32.x .33.x Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/edac_mce_amd.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/edac/edac_mce_amd.c b/drivers/edac/edac_mce_amd.c
index 8fc91a019620..f5b6d9fe4def 100644
--- a/drivers/edac/edac_mce_amd.c
+++ b/drivers/edac/edac_mce_amd.c
@@ -316,7 +316,12 @@ void amd_decode_nb_mce(int node_id, struct err_regs *regs, int handle_errors)
if (regs->nbsh & K8_NBSH_ERR_CPU_VAL)
pr_cont(", core: %u\n", (u8)(regs->nbsh & 0xf));
} else {
- pr_cont(", core: %d\n", fls((regs->nbsh & 0xf) - 1));
+ u8 assoc_cpus = regs->nbsh & 0xf;
+
+ if (assoc_cpus > 0)
+ pr_cont(", core: %d", fls(assoc_cpus) - 1);
+
+ pr_cont("\n");
}
pr_emerg("%s.\n", EXT_ERR_MSG(xec));