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| author | yuzheng ma <myz147@gmail.com> | 2012-08-15 16:11:40 +0800 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2012-09-06 19:52:26 +0300 |
| commit | 3067779b1566ae5fb6af40f03ae874ac47035523 (patch) | |
| tree | 3de04dd718271471313e05354eac4febdf476888 /lib/cpu-notifier-error-inject.c | |
| parent | 3b9c1c5ba7a95caae8440ea47308496b14f7301a (diff) | |
usb: musb: host: fix for musb_start_urb Oops
when using musb_urb_enqueue to submit three urbs to the same endpoint, when
hep->hcpriv is NULL, qh will be allocated when the first urb is completed.
When the IRQ completes the next two urbs, qh->hep->hcpriv will be set to NULL.
Now the second urb get musb->lock and executes musb_schedule(), but
next_urb(qh) is NULL, so musb_start_urb will Oops.
[ balbi@ti.com : practically rewrote commit log so it makes sense ]
Signed-off-by: mayuzheng <myz147@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'lib/cpu-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions