diff options
| author | Anton Vorontsov <[email protected]> | 2008-12-25 17:15:05 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2009-02-09 11:19:46 -0800 |
| commit | a30551db66afa1b53a4fa7ceadddb7122bdcf491 (patch) | |
| tree | bbd4f0468a7417067bf7ebb5001368b01f8c7e90 /drivers/mtd/lpddr/lpddr_cmds.c | |
| parent | 94f341db3dd080851f918da37e84659ef760da26 (diff) | |
USB: fsl_qe_udc: Fix recursive locking bug in ch9getstatus()
The call chain is this:
qe_udc_irq() <- grabs the udc->lock spinlock
rx_irq()
qe_ep0_rx()
ep0_setup_handle()
setup_received_handle()
ch9getstatus()
qe_ep_queue() <- tries to grab the udc->lock again
It seems unsafe to temporarily drop the lock in the ch9getstatus(),
so to fix that bug the lock-less __qe_ep_queue() function
implemented and used by the ch9getstatus().
Signed-off-by: Anton Vorontsov <[email protected]>
Acked-by: David Brownell <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/mtd/lpddr/lpddr_cmds.c')
0 files changed, 0 insertions, 0 deletions