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Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH] ata: libata-sff: fix reading uninitialized variable in ata_sff_lost_interrupt() Content-Language: en-US To: Sergey Shtylyov , linux-ide@vger.kernel.org Cc: Dan Carpenter References: <5e02673b-57d2-40b1-ceba-55abfb251089@omp.ru> <1f350282-0b44-755a-f1e7-308fcaa24483@omp.ru> From: Damien Le Moal Organization: Western Digital Research In-Reply-To: <1f350282-0b44-755a-f1e7-308fcaa24483@omp.ru> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-ide@vger.kernel.org On 2/18/22 20:17, Sergey Shtylyov wrote: > On 2/18/22 2:05 PM, Sergey Shtylyov wrote: > >> Due to my sloppy coding in commit 2c75a451ecb0 ("ata: libata-sff: refactor >> ata_sff_altstatus()"), in ata_sff_lost_interrupt() iff the device control >> register doesn't exists, ata_port_warn() would print the 'status' variable >> which never gets assigned. Restore the original order of the statements, >> wrapping the ata_sff_altstatus() call in WARN_ON_ONCE()... >> >> While at it, fix crazy indentation in the ata_port_warn() call itself... >> >> Fixes: 2c75a451ecb0 ("ata: libata-sff: refactor ata_sff_altstatus()") >> Reported-by: kernel test robot >> Reported-by: Dan Carpenter >> Signed-off-by: Sergey Shtylyov >> >> --- > > Forgot to mention that it's against the 'for-next' branch of 'libata.git'. :-/ No need to mention it, it always should be :) > > [...] > > MBR, Sergey -- Damien Le Moal Western Digital Research