* Re: [PATCH] serial167: Read buffer overflow
[not found] <4A76D4DA.8090905@gmail.com>
@ 2009-08-04 22:18 ` Andrew Morton
2009-08-05 9:17 ` Geert Uytterhoeven
0 siblings, 1 reply; 2+ messages in thread
From: Andrew Morton @ 2009-08-04 22:18 UTC (permalink / raw)
To: Roel Kluin; +Cc: alan, linux-kernel, Geert Uytterhoeven, linux-next
On Mon, 03 Aug 2009 14:15:22 +0200
Roel Kluin <roel.kluin@gmail•com> wrote:
> @@ -222,7 +222,7 @@ static inline int serial_paranoia_check(struct cyclades_port *info, char *name,
> }
>
> if ((long)info < (long)(&cy_port[0])
> - || (long)(&cy_port[NR_PORTS]) < (long)info) {
> + || (long)(&cy_port[NR_PORTS-1]) < (long)info) {
> printk("Warning: cyclades_port out of range for (%s) in %s\n",
> name, routine);
OK, that hurts my brain. And all those casts are pointless. How about this?
if (info < &cy_port[0] || info >= &cy_port[NR_PORTS]) {
printk("Warning: cyclades_port out of range for (%s) in %s\n",
name, routine);
return 1;
}
btw, m68k allmodconfig in current mainline is sick:
In file included from /usr/src/devel/arch/m68k/include/asm/pgtable.h:4,
from include/linux/mm.h:40,
from drivers/char/serial167.c:62:
/usr/src/devel/arch/m68k/include/asm/pgtable_mm.h:148:1: warning: "pgprot_noncached" redefined
In file included from /usr/src/devel/arch/m68k/include/asm/pgtable_mm.h:138,
from /usr/src/devel/arch/m68k/include/asm/pgtable.h:4,
from include/linux/mm.h:40,
from drivers/char/serial167.c:62:
include/asm-generic/pgtable.h:133:1: warning: this is the location of the previous definition
And in linux-next m68k allmodconfig is dead as a doornail:
drivers/staging/vme/Kconfig:5:warning: type of 'VME' redefined from 'boolean' to 'tristate'
In file included from include/linux/irq.h:12,
from include/asm-generic/hardirq.h:6,
from /usr/src/devel/arch/m68k/include/asm/hardirq.h:4,
from include/linux/hardirq.h:10,
from /usr/src/devel/arch/m68k/include/asm/system_mm.h:69,
from /usr/src/devel/arch/m68k/include/asm/system.h:4,
from include/linux/list.h:7,
from include/linux/preempt.h:11,
from include/linux/spinlock.h:50,
from include/linux/seqlock.h:29,
from include/linux/time.h:8,
from include/linux/timex.h:56,
from include/linux/sched.h:56,
from arch/m68k/kernel/asm-offsets.c:12:
include/linux/smp.h:17: error: field 'list' has incomplete type
In file included from include/linux/mmzone.h:9,
from include/linux/gfp.h:4,
from include/linux/irq.h:20,
from include/asm-generic/hardirq.h:6,
from /usr/src/devel/arch/m68k/include/asm/hardirq.h:4,
from include/linux/hardirq.h:10,
from /usr/src/devel/arch/m68k/include/asm/system_mm.h:69,
from /usr/src/devel/arch/m68k/include/asm/system.h:4,
from include/linux/list.h:7,
from include/linux/preempt.h:11,
from include/linux/spinlock.h:50,
from include/linux/seqlock.h:29,
from include/linux/time.h:8,
from include/linux/timex.h:56,
from include/linux/sched.h:56,
from arch/m68k/kernel/asm-offsets.c:12:
include/linux/wait.h:37: error: field 'task_list' has incomplete type
include/linux/wait.h:51: error: expected specifier-qualifier-list before 'spinlock_t'
include/linux/wait.h: In function 'waitqueue_active':
include/linux/wait.h:108: error: implicit declaration of function 'list_empty'
include/linux/wait.h:108: error: 'wait_queue_head_t' has no member named 'task_list'
include/linux/wait.h: In function '__add_wait_queue':
include/linux/wait.h:117: error: implicit declaration of function 'list_add'
include/linux/wait.h:117: error: 'wait_queue_head_t' has no member named 'task_list'
include/linux/wait.h: In function '__add_wait_queue_tail':
include/linux/wait.h:126: error: implicit declaration of function 'list_add_tail'
include/linux/wait.h:126: error: 'wait_queue_head_t' has no member named 'task_list'
include/linux/wait.h: In function '__remove_wait_queue':
include/linux/wait.h:132: error: implicit declaration of function 'list_del'
^ permalink raw reply [flat|nested] 2+ messages in thread