From: Jesper Juhl <[EMAIL PROTECTED]>

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 <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
---

 drivers/scsi/aic7xxx/aic7xxx_core.c |    3 ++-
 1 files 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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