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| author | Paul Cercueil <[email protected]> | 2020-05-25 02:50:48 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2020-05-25 11:36:30 +0000 |
| commit | 685f5f24108a5f3481da70ee75a1b18b9de34257 (patch) | |
| tree | a1bcef332ee55714b68f6b6f2f42671447646530 /drivers/usb/class/cdc-acm.c | |
| parent | usb: musb: mediatek: add reset FADDR to zero in reset interrupt handle (diff) | |
| download | kernel-685f5f24108a5f3481da70ee75a1b18b9de34257.tar.gz kernel-685f5f24108a5f3481da70ee75a1b18b9de34257.zip | |
usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set
The function dma_controller_irq() locks up the exact same spinlock we
locked before calling it, which obviously resulted in a deadlock when
CONFIG_SMP was enabled. This flew under the radar as none of the boards
supported by this driver needs SMP.
Fixes: 57aadb46bd63 ("usb: musb: jz4740: Add support for DMA")
Cc: [email protected]
Signed-off-by: Paul Cercueil <[email protected]>
Signed-off-by: Bin Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'drivers/usb/class/cdc-acm.c')
0 files changed, 0 insertions, 0 deletions