summaryrefslogtreecommitdiffstats
path: root/drivers/dma-buf/reservation.c
diff options
context:
space:
mode:
authorSumit Semwal <sumit.semwal@linaro.org>2015-05-05 11:26:15 +0200
committerSumit Semwal <sumit.semwal@linaro.org>2015-05-13 11:05:57 +0200
commit9abdffe286c1532a54d5aee31571d3029be4026c (patch)
tree9a2651def7b2ffea3b4fcb78b8ec0a38e460ab46 /drivers/dma-buf/reservation.c
parentLinux 4.1-rc2 (diff)
downloadlinux-9abdffe286c1532a54d5aee31571d3029be4026c.tar.xz
linux-9abdffe286c1532a54d5aee31571d3029be4026c.zip
dma-buf: add ref counting for module as exporter
Add reference counting on a kernel module that exports dma-buf and implements its operations. This prevents the module from being unloaded while DMABUF file is in use. The original patch [1] was submitted by Tomasz Stanislawski, but this is a simpler way to do it. v3: call module_put() as late as possible, per gregkh's comment. v2: move owner to struct dma_buf, and use DEFINE_DMA_BUF_EXPORT_INFO macro to simplify the change. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org> [1]: https://lkml.org/lkml/2012/8/8/163
Diffstat (limited to 'drivers/dma-buf/reservation.c')
0 files changed, 0 insertions, 0 deletions