From: Jesper Juhl <jesper.juhl@xxxxxxxxx>
The Coverity checker noticed that we have a potential NULL pointer
deref in drivers/scsi/aic7xxx/aic7xxx_core.c::ahc_print_register().
This patch handles it by adding the same test against NULL that is
used elsewhere in the same function.
Signed-off-by: Jesper Juhl <jesper.juhl@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/aic7xxx/aic7xxx_core.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN drivers/scsi/aic7xxx/aic7xxx_core.c~fix-a-potential-null-pointer-deref-in-the-aic7xxx-ahc_print_register-function drivers/scsi/aic7xxx/aic7xxx_core.c
--- a/drivers/scsi/aic7xxx/aic7xxx_core.c~fix-a-potential-null-pointer-deref-in-the-aic7xxx-ahc_print_register-function
+++ a/drivers/scsi/aic7xxx/aic7xxx_core.c
@@ -6557,7 +6557,8 @@ ahc_print_register(ahc_reg_parse_entry_t
printed = printf("%s[0x%x]", name, value);
if (table == NULL) {
printed += printf(" ");
- *cur_column += printed;
+ if (cur_column != NULL)
+ *cur_column += printed;
return (printed);
}
printed_mask = 0;
_
-
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