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| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2009-10-29 19:50:43 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-10-30 14:57:33 -0700 |
| commit | 37c4fd8c7551c7419a5faf87a76ff6949c5adaf3 (patch) | |
| tree | 41c8f2fdfa0ccd17ac44d0c94edcff8ef8bf6783 /drivers/usb/gadget/at91_udc.c | |
| parent | fead2ab6cf9ad3a84a06e68ccc20d1e460fad13e (diff) | |
| download | kernel-crypto-37c4fd8c7551c7419a5faf87a76ff6949c5adaf3.tar.gz kernel-crypto-37c4fd8c7551c7419a5faf87a76ff6949c5adaf3.tar.xz kernel-crypto-37c4fd8c7551c7419a5faf87a76ff6949c5adaf3.zip | |
USB: fsl_udc_core: Fix kernel oops on module removal
fsl_udc_release() calls dma_free_coherent() with an inappropriate
device passed to it, and since the device has no dma_ops, the following
oops pops up:
Kernel BUG at d103ce9c [verbose debug info unavailable]
Oops: Exception in kernel mode, sig: 5 [#1]
...
NIP [d103ce9c] fsl_udc_release+0x50/0x80 [fsl_usb2_udc]
LR [d103ce74] fsl_udc_release+0x28/0x80 [fsl_usb2_udc]
Call Trace:
[cfbc7dc0] [d103ce74] fsl_udc_release+0x28/0x80 [fsl_usb2_udc]
[cfbc7dd0] [c01a35c4] device_release+0x2c/0x90
[cfbc7de0] [c016b480] kobject_cleanup+0x58/0x98
[cfbc7e00] [c016c52c] kref_put+0x54/0x6c
[cfbc7e10] [c016b360] kobject_put+0x34/0x64
[cfbc7e20] [c01a1d0c] put_device+0x1c/0x2c
[cfbc7e30] [d103dbfc] fsl_udc_remove+0xc0/0x1e4 [fsl_usb2_udc]
...
This patch fixes the issue by passing dev->parent, which points to
a correct device.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Li Yang <leoli@freescale.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/at91_udc.c')
0 files changed, 0 insertions, 0 deletions