[PATCH] ARM: 2694/1: [s3c2410/dma] release irq properly to fix kernel oops

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Patch from Albrecht Dre�

Problem:
When a module requests a DMA channel via the function s3c2410_dma_request(), this function requests the appropriate irq under the name of the client module. When the client module is unloaded, it calls s3c2410_dma_free() which does not free the irq. Consequently, when e.g. running "cat /proc/interrupts", the irq owner points to freed memory, leading to a kernel oops.
File:
linux/arch/arm/mach-s3c2410/dma.c
Fix:
trivial, below

Signed-off-by: Albrecht Dre�
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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Albrecht Dre� 2005-06-03 20:52:26 +01:00 • committed by Russell King

parent 4ab5c01c7c

commit 105bb2698b

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arch/arm/mach-s3c2410/dma.c

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