diff options
Diffstat (limited to 'drivers/net/sfc/base/siena_nvram.c')
| -rw-r--r-- | drivers/net/sfc/base/siena_nvram.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/net/sfc/base/siena_nvram.c b/drivers/net/sfc/base/siena_nvram.c index e72bba0b..8cdd2df7 100644 --- a/drivers/net/sfc/base/siena_nvram.c +++ b/drivers/net/sfc/base/siena_nvram.c @@ -304,15 +304,20 @@ siena_nvram_get_dynamic_cfg( if ((rc = siena_nvram_partn_size(enp, partn, &size)) != 0) goto fail1; + if (size < SIENA_NVRAM_CHUNK) { + rc = EINVAL; + goto fail2; + } + EFSYS_KMEM_ALLOC(enp->en_esip, size, dcfg); if (dcfg == NULL) { rc = ENOMEM; - goto fail2; + goto fail3; } if ((rc = siena_nvram_partn_read(enp, partn, 0, (caddr_t)dcfg, SIENA_NVRAM_CHUNK)) != 0) - goto fail3; + goto fail4; /* Verify the magic */ if (EFX_DWORD_FIELD(dcfg->magic, EFX_DWORD_0) @@ -347,7 +352,7 @@ siena_nvram_get_dynamic_cfg( if ((rc = siena_nvram_partn_read(enp, partn, SIENA_NVRAM_CHUNK, (caddr_t)dcfg + SIENA_NVRAM_CHUNK, region - SIENA_NVRAM_CHUNK)) != 0) - goto fail4; + goto fail5; } /* Verify checksum */ @@ -389,13 +394,15 @@ done: return (0); +fail5: + EFSYS_PROBE(fail5); fail4: EFSYS_PROBE(fail4); -fail3: - EFSYS_PROBE(fail3); EFSYS_KMEM_FREE(enp->en_esip, size, dcfg); +fail3: + EFSYS_PROBE(fail3); fail2: EFSYS_PROBE(fail2); fail1: |