On 03/09/2013 01:08 PM, Kalle Valo wrote:
Mohammed Shafi <shafi.wireless@xxxxxxxxx> writes:
On Fri, Feb 22, 2013 at 8:20 PM, Mohammed Shafi Shajakhan
<mohammed@xxxxxxxxxxxxxxxx> wrote:
From: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
Credit distribution stats is currently implemented
only for SDIO. This fixes a crash in debugfs for
USB interface.
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<f91c2048>] read_file_credit_dist_stats+0x38/0x330 [ath6kl_core]
*pde = b62bd067
Oops: 0000 [#1] SMP
EIP: 0060:[<f91c2048>] EFLAGS: 00210246 CPU: 0
EIP is at read_file_credit_dist_stats+0x38/0x330 [ath6kl_core]
EAX: 00000000 EBX: e6f7a9c0 ECX: e7b148b8 EDX: 00000000
ESI: 000000c8 EDI: e7b14000 EBP: e6e09f64 ESP: e6e09f30
DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process cat (pid: 4058, ti=e6e08000 task=e50cf230 task.ti=e6e08000)
Stack:
00008000 00000000 e6e09f64 c1132d3c 00004e71 e50cf230 00008000 089e4000
e7b148b8 00000000 e6f7a9c0 00008000 089e4000 e6e09f8c c11331fc e6e09f98
00000001 e6e09f7c f91c2010 e6e09fac e6f7a9c0 089e4877 089e4000 e6e09fac
Call Trace:
[<c1132d3c>] ? rw_verify_area+0x6c/0x120
[<c11331fc>] vfs_read+0x8c/0x160
[<f91c2010>] ? read_file_war_stats+0x130/0x130 [ath6kl_core]
[<c113330d>] sys_read+0x3d/0x70
[<c15755b4>] syscall_call+0x7/0xb
[<c1570000>] ? fill_powernow_table_pstate+0x127/0x127
Cc: Ryan Hsu <ryanhsu@xxxxxxxxxxxxxxxx>
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@xxxxxxxxxxxxxxxx>
[...]
@@ -1752,8 +1752,10 @@ int ath6kl_debug_init_fs(struct ath6kl *ar)
debugfs_create_file("tgt_stats", S_IRUSR, ar->debugfs_phy, ar,
&fops_tgt_stats);
- debugfs_create_file("credit_dist_stats", S_IRUSR, ar->debugfs_phy, ar,
- &fops_credit_dist_stats);
+ if (ar->hif_type != ATH6KL_HIF_TYPE_SDIO)
made a mistake,
should be > + if (ar->hif_type == ATH6KL_HIF_TYPE_SDIO)
will send another patch
Oh, I missed as well. I rebased ath6kl-next branch and dropped patch 5
(but kept patches 1-4). Please resend patch 5.
sure thanks!
--
thanks,
shafi
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
