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| author | Johan Hovold <johan@kernel.org> | 2018-07-03 12:05:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-06 16:48:15 +0200 |
| commit | f294d00961d1d869ecffa60e280eeeee1ccf9a49 (patch) | |
| tree | 5b832d2f3b5acce75c164b63a9276955c917518d /drivers/misc | |
| parent | 3cfaeb33530592b02b2ceb76b379364c55ca612e (diff) | |
| download | linux-f294d00961d1d869ecffa60e280eeeee1ccf9a49.tar.bz2 | |
misc: sram: fix resource leaks in probe error path
Make sure to disable clocks and deregister any exported partitions
before returning on late probe errors.
Note that since commit ee895ccdf776 ("misc: sram: fix enabled clock leak
on error path"), partitions are deliberately exported before enabling
the clock so we stick to that logic here. A follow up patch will address
this.
Fixes: 2ae2e28852f2 ("misc: sram: add Atmel securam support")
Cc: stable <stable@vger.kernel.org> # 4.9
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/sram.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/misc/sram.c b/drivers/misc/sram.c index c5dc6095686a..679647713e36 100644 --- a/drivers/misc/sram.c +++ b/drivers/misc/sram.c @@ -407,13 +407,20 @@ static int sram_probe(struct platform_device *pdev) if (init_func) { ret = init_func(); if (ret) - return ret; + goto err_disable_clk; } dev_dbg(sram->dev, "SRAM pool: %zu KiB @ 0x%p\n", gen_pool_size(sram->pool) / 1024, sram->virt_base); return 0; + +err_disable_clk: + if (sram->clk) + clk_disable_unprepare(sram->clk); + sram_free_partitions(sram); + + return ret; } static int sram_remove(struct platform_device *pdev) |