From: Alexander Atanasov <alex@ssi.bg>
To: khali@linux-fr.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] I2C block read
Date: Wed, 7 Jun 2006 20:33:57 +0300 [thread overview]
Message-ID: <20060607203357.64432ad8.alex@ssi.bg> (raw)
Hello,
When doing i2c block read the lenght is passed as the first byte of the buffer,
so we must copy it from user otherwise temp is uninitialized.
Signed-off-by: Alexander Atanasov <alex@ssi.bg>
--
have fun,
alex
--- drivers/i2c/i2c-dev.c.orig 2006-01-04 02:00:00.000000000 +0200
+++ drivers/i2c/i2c-dev.c 2006-06-07 19:46:08.000000000 +0300
@@ -337,6 +337,7 @@
if ((data_arg.size == I2C_SMBUS_PROC_CALL) ||
(data_arg.size == I2C_SMBUS_BLOCK_PROC_CALL) ||
+ (data_arg.size == I2C_SMBUS_BLOCK_DATA) ||
(data_arg.read_write == I2C_SMBUS_WRITE)) {
if (copy_from_user(&temp, data_arg.data, datasize))
return -EFAULT;
next reply other threads:[~2006-06-07 17:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-07 17:33 Alexander Atanasov [this message]
2006-06-07 17:49 ` Jean Delvare
2006-06-07 18:06 ` Alexander Atanasov
2006-06-07 18:50 ` Jean Delvare
2006-06-07 19:53 ` Jordan Crouse
2006-06-08 13:29 ` [PATCH] " Alexander Atanasov
2006-06-11 13:30 ` Jean Delvare
2006-06-12 14:16 ` Alexander Atanasov
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