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authorCristian Stoica <cristian.stoica@freescale.com>2014-11-05 11:21:24 +0200
committerHerbert Xu <herbert@gondor.apana.org.au>2014-11-06 23:15:05 +0800
commit49783d0f54219e1c68eac738fdd3244b7a6cbda7 (patch)
tree4b64bc6e585dce05e5f9ad15284f6b60b0d4d7dd /drivers/crypto
parent7222d1a3410388c8e21a5028ba2beb498938b57f (diff)
downloadlinux-49783d0f54219e1c68eac738fdd3244b7a6cbda7.tar.bz2
crypto: caam - fix error reporting
The error code returned by hardware is four bits wide with an expected zero MSB. A hardware error condition where the error code can get between 0x8 and 0xf will trigger an out of bound array access on the error message table. This patch fixes the invalid array access following such an error and reports the condition. Signed-off-by: Cristian Stoica <cristian.stoica@freescale.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto')
-rw-r--r--drivers/crypto/caam/error.c25
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c
index 6531054a44c8..66d73bf54166 100644
--- a/drivers/crypto/caam/error.c
+++ b/drivers/crypto/caam/error.c
@@ -213,27 +213,36 @@ void caam_jr_strstatus(struct device *jrdev, u32 status)
void (*report_ssed)(struct device *jrdev, const u32 status,
const char *error);
const char *error;
- } status_src[] = {
+ } status_src[16] = {
{ NULL, "No error" },
{ NULL, NULL },
{ report_ccb_status, "CCB" },
{ report_jump_status, "Jump" },
{ report_deco_status, "DECO" },
- { NULL, NULL },
+ { NULL, "Queue Manager Interface" },
{ report_jr_status, "Job Ring" },
{ report_cond_code_status, "Condition Code" },
+ { NULL, NULL },
+ { NULL, NULL },
+ { NULL, NULL },
+ { NULL, NULL },
+ { NULL, NULL },
+ { NULL, NULL },
+ { NULL, NULL },
+ { NULL, NULL },
};
u32 ssrc = status >> JRSTA_SSRC_SHIFT;
const char *error = status_src[ssrc].error;
/*
- * If there is no further error handling function, just
- * print the error code, error string and exit. Otherwise
- * call the handler function.
+ * If there is an error handling function, call it to report the error.
+ * Otherwise print the error source name.
*/
- if (!status_src[ssrc].report_ssed)
- dev_err(jrdev, "%08x: %s: \n", status, status_src[ssrc].error);
- else
+ if (status_src[ssrc].report_ssed)
status_src[ssrc].report_ssed(jrdev, status, error);
+ else if (error)
+ dev_err(jrdev, "%d: %s\n", ssrc, error);
+ else
+ dev_err(jrdev, "%d: unknown error source\n", ssrc);
}
EXPORT_SYMBOL(caam_jr_strstatus);