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If an unexpected interrupt occurs while preparing the next request, an oops can occur. For example, a new request is setting up DMA for data transfer so host->data is not NULL. An unexpected transfer complete (TC) interrupt comes along and the interrupt handler sets host->data to NULL. Oops! Prevent that by adding a spinlock. Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com> Acked-by: Matt Fleming <matt@console-pimps.org> Cc: Ian Molton <ian@mnementh.co.uk> Cc: "Roberto A. Foglietta" <roberto.foglietta@gmail.com> Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com> Cc: Denis Karpov <ext-denis.2.karpov@nokia.com> Cc: Pierre Ossman <pierre@ossman.eu> Cc: Philip Langdale <philipl@overt.org> Cc: "Madhusudhan" <madhu.cr@ti.com> Cc: <linux-mmc@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| at91_mci.c | ||
| atmel-mci-regs.h | ||
| atmel-mci.c | ||
| au1xmmc.c | ||
| cb710-mmc.c | ||
| cb710-mmc.h | ||
| imxmmc.c | ||
| imxmmc.h | ||
| Kconfig | ||
| Makefile | ||
| mmc_spi.c | ||
| mmci.c | ||
| mmci.h | ||
| msm_sdcc.c | ||
| msm_sdcc.h | ||
| mvsdio.c | ||
| mvsdio.h | ||
| mxcmmc.c | ||
| of_mmc_spi.c | ||
| omap_hsmmc.c | ||
| omap.c | ||
| pxamci.c | ||
| pxamci.h | ||
| ricoh_mmc.c | ||
| s3cmci.c | ||
| s3cmci.h | ||
| sdhci-of.c | ||
| sdhci-pci.c | ||
| sdhci-pltfm.c | ||
| sdhci-s3c.c | ||
| sdhci.c | ||
| sdhci.h | ||
| sdricoh_cs.c | ||
| tifm_sd.c | ||
| tmio_mmc.c | ||
| tmio_mmc.h | ||
| via-sdmmc.c | ||
| wbsd.c | ||
| wbsd.h | ||