kernel_samsung_sm7125

jenna

History

Li Yang 185e3dead3 USB: fsl_usb2_udc: fix recursive lock UDC needs to release lock before calling out to gadget driver, since it may need to reenter. The change fixes kernel BUG observed on rt kernel. > kernel BUG at kernel/rtmutex.c:683! > stopped custom tracer. > Oops: Exception in kernel mode, sig: 5 [#1] > PREEMPT MPC834x ITX > NIP: c021629c LR: c0216270 CTR: 00000000 > REGS: df761d70 TRAP: 0700 Not tainted (2.6.23.9-rt13) > MSR: 00021032 <ME,IR,DR> CR: 28000022 XER: 00000000 > TASK = df632080[241] 'IRQ-38' THREAD: df760000 > GPR00: 00000001 df761e20 df632080 00000000 11111111 00000000 df761e6c > 00000000 > GPR08: df761e48 00000000 df761e50 00000000 80000000 ede5cdde 1fffd000 > 00800000 > GPR16: ffffffff 00000000 007fff00 00000040 00000000 007ffeb0 00000000 > 1fff8b08 > GPR24: 00000000 00000026 00000000 df79a320 c026b2e8 c02240bc 00009032 > df79a320 > NIP [c021629c] rt_spin_lock_slowlock+0x9c/0x200 > LR [c0216270] rt_spin_lock_slowlock+0x70/0x200 > Call Trace: > [df761e20] [c0216270] rt_spin_lock_slowlock+0x70/0x200 (unreliable) > [df761e90] [c0182828] fsl_ep_disable+0xcc/0x154 > [df761eb0] [c0184d30] eth_reset_config+0x88/0x1d0 > [df761ed0] [c0184ec0] eth_disconnect+0x48/0x64 > [df761ef0] [c01831a4] reset_queues+0x60/0x78 > [df761f00] [c0183b74] fsl_udc_irq+0x9b8/0xa58 > [df761f50] [c003ef30] handle_IRQ_event+0x64/0x100 > [df761f80] [c003f758] thread_simple_irq+0x6c/0xc8 > [df761fa0] [c003f888] do_irqd+0xd4/0x2e4 > [df761fd0] [c0032284] kthread+0x50/0x8c > [df761ff0] [c000f9b4] kernel_thread+0x44/0x60 Signed-off-by: Li Yang <leoli@freescale.com> Cc: Eugene T. Bordenkircher <Eugene_Bordenkircher@selinc.com> Acked-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>		17 years ago
..
Kconfig	usb: pxa27x_udc driver	17 years ago
Makefile	usb: pxa27x_udc driver	17 years ago
amd5536udc.c	usb: fix integer as NULL pointer warnings found by sparse	17 years ago
amd5536udc.h	…
at91_udc.c	usb: use non-racy method for proc entries creation	17 years ago
at91_udc.h	…
atmel_usba_udc.c	USB: atmel_usba_udc fixes, mostly disconnect()	17 years ago
atmel_usba_udc.h	…
config.c	…
dummy_hcd.c	drivers/usb annotations and fixes	17 years ago
epautoconf.c	…
ether.c	usb: pxa27x_udc driver	17 years ago
file_storage.c	USB GADGET/PERIPHERAL: g_file_storage Bulk-Only Transport compliance, clear-feature ignore	17 years ago
fsl_usb2_udc.c	USB: fsl_usb2_udc: fix recursive lock	17 years ago
fsl_usb2_udc.h	…
gadget_chips.h	…
gmidi.c	drivers/usb annotations and fixes	17 years ago
goku_udc.c	usb: use get/put_unaligned_* helpers	17 years ago
goku_udc.h	…
inode.c	…
lh7a40x_udc.c	…
lh7a40x_udc.h	…
m66592-udc.c	…
m66592-udc.h	drivers/usb annotations and fixes	17 years ago
ndis.h	…
net2280.c	…
net2280.h	…
omap_udc.c	usb: use non-racy method for proc entries creation	17 years ago
omap_udc.h	…
printer.c	…
pxa2xx_udc.c	…
pxa2xx_udc.h	…
pxa27x_udc.c	USB: pxa27x_udc - Fix Oops	17 years ago
pxa27x_udc.h	USB: pxa27x_udc: minor fixes	17 years ago
rndis.c	usb: use get/put_unaligned_* helpers	17 years ago
rndis.h	…
s3c2410_udc.c	…
s3c2410_udc.h	…
serial.c	USB: serial gadget: descriptor cleanup	17 years ago
usbstring.c	usb: use get/put_unaligned_* helpers	17 years ago
zero.c	usb: gadget zero timer init fix	17 years ago