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authorLudovic Barre <ludovic.barre@st.com>2017-12-01 17:36:51 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-15 20:27:43 +0100
commit0858fe3c9c8bf0e4a73da7b2759950ee75ed8995 (patch)
tree05502089074d7ca64f8ef3a36ad694456c50158e /drivers/tty/serial
parentfe8e7acea2426dcd1130fd5c9710b74217c90dd0 (diff)
serial: stm32: fix name conflict with 8250
This patch replaces stm32 tty name ttyS by ttySTM to avoid a name conflict when Serial: 8250/16550 driver is activated. sysfs: cannot create duplicate filename '/class/tty/ttyS3' Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.0-12903-gb392521-dirty #1 [<c03118dc>] (unwind_backtrace) from [<c030c950>] (show_stack+0x10/0x14) [<c030c950>] (show_stack) from [<c0d31e18>] (dump_stack+0x90/0xa4) [<c0d31e18>] (dump_stack) from [<c03430a0>] (__warn+0xf8/0x110) [<c03430a0>] (__warn) from [<c03430f0>] (warn_slowpath_fmt+0x38/0x48) [<c03430f0>] (warn_slowpath_fmt) from [<c04ce574>] (sysfs_warn_dup+0x68/0x78) [<c04ce574>] (sysfs_warn_dup) from [<c04ce824>] (sysfs_do_create_link_sd+0xb4/0xc4) [<c04ce824>] (sysfs_do_create_link_sd) from [<c08c60ec>] (device_add+0x204/0x574) [<c08c60ec>] (device_add) from [<c07a7ddc>] (tty_register_device_attr+0xc8/0x1bc) [<c07a7ddc>] (tty_register_device_attr) from [<c07c6530>] (uart_add_one_port+0x22c/0x4f4) Signed-off-by: Ludovic Barre <ludovic.barre@st.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
-rw-r--r--drivers/tty/serial/stm32-usart.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h
index 8a5ff54d0f42..2294d0f05872 100644
--- a/drivers/tty/serial/stm32-usart.h
+++ b/drivers/tty/serial/stm32-usart.h
@@ -236,7 +236,7 @@ struct stm32_usart_info stm32h7_info = {
#define USART_ICR_CMCF BIT(17) /* F7 */
#define USART_ICR_WUCF BIT(20) /* H7 */
-#define STM32_SERIAL_NAME "ttyS"
+#define STM32_SERIAL_NAME "ttySTM"
#define STM32_MAX_PORTS 8
#define RX_BUF_L 200 /* dma rx buffer length */