From: Heiner Kallweit <hkallweit1@gmail.com>
To: Wolfram Sang <wsa@kernel.org>
Cc: "linux-i2c@vger.kernel.org" <linux-i2c@vger.kernel.org>
Subject: [PATCH] i2c: core: Improve i2c_new_scanned_device
Date: Tue, 7 Jan 2025 21:29:07 +0100 [thread overview]
Message-ID: <f4110289-f7e9-471a-bb91-941c85bfb43e@gmail.com> (raw)
Simplify the logic in this function. And as we're no longer limited to
C89, move the iterator variable declaration to the for loop.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
drivers/i2c/i2c-core-base.c | 18 +++++++-----------
1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 4a858b1ae..f3b1106f2 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -2507,12 +2507,10 @@ i2c_new_scanned_device(struct i2c_adapter *adap,
unsigned short const *addr_list,
int (*probe)(struct i2c_adapter *adap, unsigned short addr))
{
- int i;
-
if (!probe)
probe = i2c_default_probe;
- for (i = 0; addr_list[i] != I2C_CLIENT_END; i++) {
+ for (int i = 0; addr_list[i] != I2C_CLIENT_END; i++) {
/* Check address validity */
if (i2c_check_7bit_addr_validity_strict(addr_list[i]) < 0) {
dev_warn(&adap->dev, "Invalid 7-bit address 0x%02x\n",
@@ -2529,17 +2527,15 @@ i2c_new_scanned_device(struct i2c_adapter *adap,
}
/* Test address responsiveness */
- if (probe(adap, addr_list[i]))
- break;
+ if ((probe(adap, addr_list[i]))) {
+ info->addr = addr_list[i];
+ return i2c_new_client_device(adap, info);
+ }
}
- if (addr_list[i] == I2C_CLIENT_END) {
- dev_dbg(&adap->dev, "Probing failed, no device found\n");
- return ERR_PTR(-ENODEV);
- }
+ dev_dbg(&adap->dev, "Probing failed, no device found\n");
- info->addr = addr_list[i];
- return i2c_new_client_device(adap, info);
+ return ERR_PTR(-ENODEV);
}
EXPORT_SYMBOL_GPL(i2c_new_scanned_device);
--
2.47.1
next reply other threads:[~2025-01-07 20:29 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-07 20:29 Heiner Kallweit [this message]
2025-01-09 10:27 ` [PATCH] i2c: core: Improve i2c_new_scanned_device Wolfram Sang
2025-01-09 13:58 ` Heiner Kallweit
2025-01-14 12:11 ` Wolfram Sang
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