Messages in this thread | | | Date | Tue, 19 Apr 2022 12:18:42 +0200 | From | Michael Walle <> | Subject | Re: [PATCH v3 3/9] mtd: spi-nor: core: Use auto-detection only once |
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Am 2022-04-11 11:10, schrieb Tudor Ambarus: > In case spi_nor_match_name() returned NULL, the auto detection was > issued twice. There's no reason to try to detect the same chip twice, > do the auto detection only once. > > Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> > --- > v3: > - caller of spi_nor_get_flash_info now handles NULL and translates it > to > ENOENT. > > drivers/mtd/spi-nor/core.c | 13 ++++++++----- > 1 file changed, 8 insertions(+), 5 deletions(-) > > diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c > index b9cc8bbf1f62..b55d922d46dd 100644 > --- a/drivers/mtd/spi-nor/core.c > +++ b/drivers/mtd/spi-nor/core.c > @@ -2896,13 +2896,14 @@ static const struct flash_info > *spi_nor_get_flash_info(struct spi_nor *nor, > { > const struct flash_info *info = NULL; > > - if (name) > + if (name) { > info = spi_nor_match_name(nor, name); > + if (IS_ERR(info)) > + return info; > + }
That is unnecessary, as spi_nor_match_name() doesn't return an error code, just NULL or a valid pointer.
Apart from that: Reviewed-by: Michael Walle <michael@walle.cc>
> /* Try to auto-detect if chip name wasn't specified or not found */ > if (!info) > - info = spi_nor_read_id(nor); > - if (IS_ERR_OR_NULL(info)) > - return ERR_PTR(-ENOENT); > + return spi_nor_read_id(nor); > > /* > * If caller has specified name of flash model that can normally be > @@ -2994,7 +2995,9 @@ int spi_nor_scan(struct spi_nor *nor, const char > *name, > return -ENOMEM; > > info = spi_nor_get_flash_info(nor, name); > - if (IS_ERR(info)) > + if (!info) > + return -ENOENT; > + else if (IS_ERR(info)) > return PTR_ERR(info); > > nor->info = info;
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