Staging: zram: Fix kunmapping order
This patch fixes the unmapping order of KM_USER0/1 in handle_uncompressed_page() and zram_read() so that kmap()/kunmap() calls are correctly nested. Reported-by: NNitin Gupta <ngupta@vflare.org> Signed-off-by: NJerome Marchand <jmarchan@redhat.com> Reviewed-by: NNitin Gupta <ngupta@vflare.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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