[PATCH] serial: 8250_aspeed_vuart: Replace snprintf in show functions with sysfs_emit
From: cgel.zte@gmail.com <cgel.zte@gmail.com>
Date: 2021-11-10 02:40:36
Also in:
linux-arm-kernel, linux-serial, lkml
Subsystem:
8250/16?50 (and clone uarts) serial driver, the rest, tty layer and serial drivers · Maintainers:
Greg Kroah-Hartman, Linus Torvalds, Jiri Slaby
From: Jing Yao <redacted> coccicheck complains about the use of snprintf() in sysfs show functions: WARNING use scnprintf or sprintf Use sysfs_emit instead of scnprintf, snprintf or sprintf makes more sense. Reported-by: Zeal Robot <redacted> Signed-off-by: Jing Yao <redacted> --- drivers/tty/serial/8250/8250_aspeed_vuart.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_aspeed_vuart.c b/drivers/tty/serial/8250/8250_aspeed_vuart.c
index 2350fb3bb5e4..36c39b8ea7af 100644
--- a/drivers/tty/serial/8250/8250_aspeed_vuart.c
+++ b/drivers/tty/serial/8250/8250_aspeed_vuart.c@@ -82,7 +82,7 @@ static ssize_t lpc_address_show(struct device *dev, addr = (aspeed_vuart_readb(vuart, ASPEED_VUART_ADDRH) << 8) | (aspeed_vuart_readb(vuart, ASPEED_VUART_ADDRL)); - return snprintf(buf, PAGE_SIZE - 1, "0x%x\n", addr); + return sysfs_emit(buf, "0x%x\n", addr); } static int aspeed_vuart_set_lpc_address(struct aspeed_vuart *vuart, u32 addr)
@@ -124,7 +124,7 @@ static ssize_t sirq_show(struct device *dev, reg &= ASPEED_VUART_GCRB_HOST_SIRQ_MASK; reg >>= ASPEED_VUART_GCRB_HOST_SIRQ_SHIFT; - return snprintf(buf, PAGE_SIZE - 1, "%u\n", reg); + return sysfs_emit(buf, "%u\n", reg); } static int aspeed_vuart_set_sirq(struct aspeed_vuart *vuart, u32 sirq)
@@ -171,7 +171,7 @@ static ssize_t sirq_polarity_show(struct device *dev, reg = aspeed_vuart_readb(vuart, ASPEED_VUART_GCRA); reg &= ASPEED_VUART_GCRA_HOST_SIRQ_POLARITY; - return snprintf(buf, PAGE_SIZE - 1, "%u\n", reg ? 1 : 0); + return sysfs_emit(buf, "%u\n", reg ? 1 : 0); } static void aspeed_vuart_set_sirq_polarity(struct aspeed_vuart *vuart,
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2.25.1