From: Boris Brezillon <boris.brezillon@bootlin.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: "Ralf Baechle" <ralf@linux-mips.org>,
"open list:RALINK MIPS ARCHITECTURE" <linux-mips@linux-mips.org>,
"Rafał Miłecki" <zajec5@gmail.com>,
"Richard Weinberger" <richard@nod.at>,
"Miquel Raynal" <miquel.raynal@bootlin.com>,
linux-mtd <linux-mtd@lists.infradead.org>,
"David Woodhouse" <dwmw2@infradead.org>,
"Brian Norris" <computersforpeace@gmail.com>,
"Marek Vasut" <marek.vasut@gmail.com>,
linux-wireless <linux-wireless@vger.kernel.org>
Subject: Re: [PATCH v2 11/24] mtd: rawnand: sunxi: Make sure ret is initialized in sunxi_nfc_read_byte()
Date: Mon, 9 Jul 2018 23:00:11 +0200 [thread overview]
Message-ID: <20180709230011.1ca3f9ce@bbrezillon> (raw)
In-Reply-To: <CAK8P3a1Ndys3MMxLqL-hTFVDSZGm5ASEnQ7K+8dScvFrp=RTdA@mail.gmail.com>
On Mon, 9 Jul 2018 22:35:56 +0200
Arnd Bergmann <arnd@arndb.de> wrote:
> On Mon, Jul 9, 2018 at 10:09 PM, Boris Brezillon
> <boris.brezillon@bootlin.com> wrote:
> > Fixes the following smatch warning:
> >
> > drivers/mtd/nand/raw/sunxi_nand.c:551 sunxi_nfc_read_byte() error: uninitialized symbol 'ret'.
> >
> > Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
> > ---
> > drivers/mtd/nand/raw/sunxi_nand.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c
> > index 99043c3a4fa7..4b11cd4a79be 100644
> > --- a/drivers/mtd/nand/raw/sunxi_nand.c
> > +++ b/drivers/mtd/nand/raw/sunxi_nand.c
> > @@ -544,7 +544,7 @@ static void sunxi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf,
> >
> > static uint8_t sunxi_nfc_read_byte(struct mtd_info *mtd)
> > {
> > - uint8_t ret;
> > + uint8_t ret = 0;
> >
> > sunxi_nfc_read_buf(mtd, &ret, 1);
> >
>
> Should there perhaps be a warning when no data was returned after a timeout?
We're planning to move this driver to ->exec_op() soon, and with
->exec_op() errors are properly propagated to the core. I guess we can
live with this lack of dev_warn() for a bit longer :-).
next prev parent reply other threads:[~2018-07-09 21:00 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-09 20:09 [PATCH v2 00/24] mtd: rawnand: Improve compile-test coverage Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 01/24] mtd: rawnand: atmel: Use uintptr_t casts instead of unsigned int Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 02/24] mtd: rawnand: atmel: Add an __iomem cast on gen_pool_dma_alloc() call Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 03/24] mtd: rawnand: atmel: Allow selection of this driver when COMPILE_TEST=y Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 04/24] mtd: rawnand: s3c2410: " Boris Brezillon
2018-07-11 11:16 ` Boris Brezillon
2018-07-11 11:27 ` Arnd Bergmann
2018-07-11 11:32 ` Boris Brezillon
2018-07-11 12:09 ` Arnd Bergmann
2018-07-11 13:01 ` Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 05/24] mtd: rawnand: orion: Avoid direct inclusion of asm headers Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 06/24] mtd: rawnand: orion: Allow selection of this driver when COMPILE_TEST=y Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 07/24] mtd: rawnand: davinci: Stop doing iomem pointer <-> u32 conversions Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 08/24] mtd: rawnand: davinci: Use uintptr_t casts instead of unsigned ones Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 09/24] mtd: rawnand: davinci: Allow selection of this driver when COMPILE_TEST=y Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 10/24] mtd: rawnand: sunxi: Add an U suffix to NFC_PAGE_OP definition Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 11/24] mtd: rawnand: sunxi: Make sure ret is initialized in sunxi_nfc_read_byte() Boris Brezillon
2018-07-09 20:35 ` Arnd Bergmann
2018-07-09 21:00 ` Boris Brezillon [this message]
2018-07-09 20:09 ` [PATCH v2 12/24] mtd: rawnand: sunxi: Allow selection of this driver when COMPILE_TEST=y Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 13/24] mtd: rawnand: fscm: Avoid collision on PC def when compiling for MIPS Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 14/24] mtd: rawnand: fsmc: Use uintptr_t casts instead of unsigned ones Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 15/24] mtd: rawnand: fsmc: Allow selection of this driver when COMPILE_TEST=y Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 16/24] memory: fsl_ifc: " Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 17/24] mtd: rawnand: fsl_ifc: Add an __iomem specifier on eccstat_regs Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 18/24] mtd: rawnand: fsl_ifc: Allow selection of this driver when COMPILE_TEST=y Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 19/24] MIPS: txx9: Move the ndfc.h header to include/linux/platform_data/txx9 Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 20/24] mtd: rawnand: txx9ndfmc: Allow selection of this driver when COMPILE_TEST=y Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 21/24] MIPS: jz4740: Move jz4740_nand.h header to include/linux/platform_data/jz4740 Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 22/24] mtd: rawnand: jz4740: Allow selection of this driver when COMPILE_TEST=y Boris Brezillon
2018-07-09 20:09 ` [PATCH v2 23/24] mtd: rawnand: jz4780: Drop the dependency on MACH_JZ4780 Boris Brezillon
[not found] ` <CANc+2y5vjUpM_ikegaoKTtqehSmBY3y_r+1E6y93AoivRQqmfg@mail.gmail.com>
2018-07-10 17:10 ` Boris Brezillon
2018-07-11 17:24 ` PrasannaKumar Muralidharan
2018-07-09 20:09 ` [PATCH v2 24/24] memory: jz4780-nemc: Allow selection of this driver when COMPILE_TEST=y Boris Brezillon
2018-07-09 20:45 ` [PATCH v2 00/24] mtd: rawnand: Improve compile-test coverage Arnd Bergmann
2018-07-10 18:51 ` Paul Burton
2018-07-18 7:13 ` Miquel Raynal
2018-07-18 7:15 ` Miquel Raynal
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