net/davinci_cpdma: don't check for jiffies with interrupts

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__cpdma_chan_process() holds the lock with interrupts off (and its
caller as well), same goes for cpdma_ctlr_start(). With interrupts off,
jiffies will not make any progress and if the wait condition never gets
true we wait for ever.
Tgis patch adds a a simple udelay and counting down attempt.

Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Sebastian Siewior 2013-04-23 07:31:35 +00:00 • committed by David S. Miller

parent 2bac7cb316

commit 817f6d1a13

1 changed files with 12 additions and 8 deletions

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drivers/net/ethernet/ti/davinci_cpdma.c

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