From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linux-kernel@vger.kernel.org
Cc: Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Prchal <jiri.prchal@aksignal.cz>
Subject: [PATCH v1 02/10] misc: at25: Unshadow error codes in at25_fw_to_chip()
Date: Thu, 25 Nov 2021 23:31:55 +0200 [thread overview]
Message-ID: <20211125213203.86693-3-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20211125213203.86693-1-andriy.shevchenko@linux.intel.com>
device_property_read_u32() may return different error codes.
Unshadow them in the at25_fw_to_chip() to give better error
report.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/misc/eeprom/at25.c | 40 +++++++++++++++++++++-----------------
1 file changed, 22 insertions(+), 18 deletions(-)
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 6bea9c7c64a0..027840c73fc8 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -304,33 +304,35 @@ static int at25_ee_write(void *priv, unsigned int off, void *val, size_t count)
static int at25_fw_to_chip(struct device *dev, struct spi_eeprom *chip)
{
u32 val;
+ int err;
memset(chip, 0, sizeof(*chip));
strncpy(chip->name, "at25", sizeof(chip->name));
- if (device_property_read_u32(dev, "size", &val) == 0 ||
- device_property_read_u32(dev, "at25,byte-len", &val) == 0) {
- chip->byte_len = val;
- } else {
+ err = device_property_read_u32(dev, "size", &val);
+ if (err)
+ err = device_property_read_u32(dev, "at25,byte-len", &val);
+ if (err) {
dev_err(dev, "Error: missing \"size\" property\n");
- return -ENODEV;
+ return err;
}
+ chip->byte_len = val;
- if (device_property_read_u32(dev, "pagesize", &val) == 0 ||
- device_property_read_u32(dev, "at25,page-size", &val) == 0) {
- chip->page_size = val;
- } else {
+ err = device_property_read_u32(dev, "pagesize", &val);
+ if (err)
+ err = device_property_read_u32(dev, "at25,page-size", &val);
+ if (err) {
dev_err(dev, "Error: missing \"pagesize\" property\n");
- return -ENODEV;
+ return err;
}
-
- if (device_property_read_u32(dev, "at25,addr-mode", &val) == 0) {
- chip->flags = (u16)val;
- } else {
- if (device_property_read_u32(dev, "address-width", &val)) {
- dev_err(dev,
- "Error: missing \"address-width\" property\n");
- return -ENODEV;
+ chip->page_size = val;
+
+ err = device_property_read_u32(dev, "at25,addr-mode", &val);
+ if (err) {
+ err = device_property_read_u32(dev, "address-width", &val);
+ if (err) {
+ dev_err(dev, "Error: missing \"address-width\" property\n");
+ return err;
}
switch (val) {
case 9:
@@ -353,6 +355,8 @@ static int at25_fw_to_chip(struct device *dev, struct spi_eeprom *chip)
}
if (device_property_present(dev, "read-only"))
chip->flags |= EE_READONLY;
+ } else {
+ chip->flags = (u16)val;
}
return 0;
}
--
2.33.0
next prev parent reply other threads:[~2021-11-25 21:38 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-25 21:31 [PATCH v1 00/10] misc: at25: Code cleanups and improvements Andy Shevchenko
2021-11-25 21:31 ` [PATCH v1 01/10] misc: at25: Use at25->chip instead of local chip everywhere in ->probe() Andy Shevchenko
2021-11-25 21:31 ` Andy Shevchenko [this message]
2021-11-25 21:31 ` [PATCH v1 03/10] misc: at25: Check new property ("address-width") first Andy Shevchenko
2021-11-25 21:31 ` [PATCH v1 04/10] misc: at25: Get platform data via dev_get_platdata() Andy Shevchenko
2021-11-25 21:31 ` [PATCH v1 05/10] misc: at25: Get rid of intermediate storage for AT25 chip data Andy Shevchenko
2021-11-25 21:31 ` [PATCH v1 06/10] misc: at25: Switch to use BIT() instead of custom approaches Andy Shevchenko
2021-11-25 21:32 ` [PATCH v1 07/10] misc: at25: Factor out at_fram_to_chip() Andy Shevchenko
2021-11-25 21:32 ` [PATCH v1 08/10] misc: at25: Reorganize headers for better maintenance Andy Shevchenko
2021-11-25 21:32 ` [PATCH v1 09/10] misc: at25: Replace commas by spaces in the ID tables Andy Shevchenko
2021-11-25 21:32 ` [PATCH v1 10/10] misc: at25: Align comment style Andy Shevchenko
2021-11-25 22:03 ` [PATCH v1 00/10] misc: at25: Code cleanups and improvements Arnd Bergmann
2021-11-26 9:52 ` Andy Shevchenko
2021-11-26 9:59 ` Andy Shevchenko
2021-12-01 14:19 ` Andy Shevchenko
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