ARM: shmobile: R-Car: Break infinite loop

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rcar_sysc_update() loops (with interrupts disabled and while holding a
spinlock) until submitting a power shutoff or resume request fails, or
until the submitted request was accepted.
If none of these conditions becomes true, this forms an infinite loop.

Put a limit on the maximum number of loop iterations, and add a small
delay to each iteration, to fix this.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

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Geert Uytterhoeven 2015-06-04 20:22:29 +02:00 • committed by Simon Horman

parent 6fd2242e60

commit 2f575fcff1

1 changed files with 14 additions and 2 deletions

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arch/arm/mach-shmobile/pm-rcar.c

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