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Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm-fixes 

etnaviv core dump locking fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1558966666.4039.4.camel@pengutronix.de
hifive-unleashed-5.2
Dave Airlie 2019-05-30 10:48:09 +10:00
parent cd6c84d8f0 1396500d67
commit b077dc23b5
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/etnaviv/etnaviv_dump.c
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@ -125,6 +125,8 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
return;
etnaviv_dump_core = false;
mutex_lock(&gpu->mmu->lock);
mmu_size = etnaviv_iommu_dump_size(gpu->mmu);
/* We always dump registers, mmu, ring and end marker */
@ -167,6 +169,7 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
iter.start = __vmalloc(file_size, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY,
PAGE_KERNEL);
if (!iter.start) {
mutex_unlock(&gpu->mmu->lock);
dev_warn(gpu->dev, "failed to allocate devcoredump file\n");
return;
}
@ -234,6 +237,8 @@ void etnaviv_core_dump(struct etnaviv_gpu *gpu)
obj->base.size);
}
mutex_unlock(&gpu->mmu->lock);
etnaviv_core_dump_header(&iter, ETDUMP_BUF_END, iter.data);
dev_coredumpv(gpu->dev, iter.start, iter.data - iter.start, GFP_KERNEL);