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authorPatrick Delaunay <patrick.delaunay@st.com>2019-06-21 16:26:41 +0300
committerPatrick Delaunay <patrick.delaunay@st.com>2019-07-12 12:50:54 +0300
commit585289b4fc47a8d745bf922b86f4adc69b24088e (patch)
tree490076b6d5b1ff9a39fc06221c1fb929226d1d44 /drivers/serial
parent8e1947774e39f18912fb2fb130e1c5bba0db0d79 (diff)
downloadu-boot-585289b4fc47a8d745bf922b86f4adc69b24088e.tar.xz
serial: stm32: Fix warnings when compiling with W=1
This patch solves the following warnings: drivers/serial/serial_stm32.c: In function 'stm32_serial_probe': warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] if (plat->clock_rate < 0) { ^ Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/serial_stm32.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/serial/serial_stm32.c b/drivers/serial/serial_stm32.c
index cca8b707ac..3ab536a52a 100644
--- a/drivers/serial/serial_stm32.c
+++ b/drivers/serial/serial_stm32.c
@@ -195,9 +195,9 @@ static int stm32_serial_probe(struct udevice *dev)
}
plat->clock_rate = clk_get_rate(&clk);
- if (plat->clock_rate < 0) {
+ if (!plat->clock_rate) {
clk_disable(&clk);
- return plat->clock_rate;
+ return -EINVAL;
};
_stm32_serial_init(plat->base, plat->uart_info);