Re: [PATCH 4.19 09/78] iio: adc: mcp3422: fix locking on error path

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On Wed, Sep 16, 2020 at 09:31:00AM +0200, Pavel Machek wrote:
Hi!

[ Upstream commit a139ffa40f0c24b753838b8ef3dcf6ad10eb7854 ]

Reading from the chip should be unlocked on error path else the lock
could never being released.

Fixes: 07914c84ba30 ("iio: adc: Add driver for Microchip MCP3422/3/4 high resolution ADC")
Fixes: 3f1093d83d71 ("iio: adc: mcp3422: fix locking scope")

Well, 3f1093d83d71 is only applied later in the stable series, so this
introduces spurious unlock.

Ideally this should go just after 3f1093d83d71 ("iio: adc: mcp3422:
fix locking scope").

Patches rearranged, thanks!

--
Thanks,
Sasha



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