[PATCH] tty: serial: ma35d1_serial: Add missing check for ioremap
From: Chen Ni <hidden>
Date: 2023-09-15 07:12:43
Also in:
linux-serial, lkml
Subsystem:
arm/nuvoton ma35 architecture, the rest, tty layer and serial drivers · Maintainers:
Jacky Huang, Shan-Chun Hung, Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
Add check for ioremap() and return the error if it fails in order to
guarantee the success of ioremap().
Fixes: 930cbf92db01 ("tty: serial: Add Nuvoton ma35d1 serial driver support")
Signed-off-by: Chen Ni <redacted>
---
drivers/tty/serial/ma35d1_serial.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/tty/serial/ma35d1_serial.c b/drivers/tty/serial/ma35d1_serial.c
index 465b1def9e11..4a9d1252de35 100644
--- a/drivers/tty/serial/ma35d1_serial.c
+++ b/drivers/tty/serial/ma35d1_serial.c@@ -695,6 +695,9 @@ static int ma35d1serial_probe(struct platform_device *pdev) up->port.iobase = res_mem->start; up->port.membase = ioremap(up->port.iobase, MA35_UART_REG_SIZE); + if (!up->port.membase) + return -ENOMEM; + up->port.ops = &ma35d1serial_ops; spin_lock_init(&up->port.lock);
--
2.25.1
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