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authorSascha Hauer <s.hauer@pengutronix.de>2011-12-22 23:11:06 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2011-12-23 11:15:44 +0100
commit4b8750c95610f601ac7e8571713eab268877d224 (patch)
tree1dfd108d86add8d1d0fd34e01d4b431acbdc7da2 /drivers/serial/serial_imx.c
parentf02a48ea00637025dc13d86d1ff024b6aec071d7 (diff)
downloadbarebox-4b8750c95610f601ac7e8571713eab268877d224.tar.gz
uart drivers: use xzalloc instead of xmalloc
The flags in struct console_device have to be initialized to zero. Otherwise the following can happen: - console_register sets the initial baudrate of a new console before we set the global console init state to CONSOLE_INIT_FULL. - In console_baudrate_set we test whether the current console is active which may be true because of unitialized flags. - we then call getc() to wait for the user to accept the new settings and we are stuck because of the CONSOLE_UNINITIALIZED state we will never get anything from getc(). Looking back this explains some cases for me when barebox refused to start and I really wonder why this did not become a more visible problem before. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/serial/serial_imx.c')
-rw-r--r--drivers/serial/serial_imx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/serial/serial_imx.c b/drivers/serial/serial_imx.c
index 4923dcb..8547f36 100644
--- a/drivers/serial/serial_imx.c
+++ b/drivers/serial/serial_imx.c
@@ -320,7 +320,7 @@ static int imx_serial_probe(struct device_d *dev)
struct imx_serial_priv *priv;
uint32_t val;
- priv = xmalloc(sizeof(*priv));
+ priv = xzalloc(sizeof(*priv));
cdev = &priv->cdev;
priv->regs = dev_request_mem_region(dev, 0);