from kernel 2.4 i2c-dev and i2c-core for CVS
PATCH 1/1 from kernel 2.4 i2c-dev and i2c-core for CVS
Hi all,
Below are two patches that showed up in the 2.4 kernel from Alan Cox. i2c-dev limits the amount of data copied from/to user_space from/to kernel_space in i2cdev_read and i2cdev_write.i2c-core.c changes len_total from and int to size_t. I've tested on 2.2, 2.4 and 2.5 kernels. If no one objects I'll update CVS to reflect Alan's changes.
Albert
i2c-dev.c 2002-09-29 12:29:48.000000000 -0400 renamed from i2c-dev.c.orig 2002-09-29 12:26:18.000000000 -0400 +6 -0
@@ -145,6 +145,9 @@ struct i2c_client *client = (struct i2c_client *)file->private_data; + if (count > 8192) + count = 8192; + /* copy user space data to kernel space. */ tmp = kmalloc(count,GFP_KERNEL); if (tmp=NULL)
@@ -173,6 +176,9 @@ struct inode *inode = file->f_dentry->d_inode; #endif /* DEBUG */ + if (count > 8192) + count = 8192; + /* copy user space data to kernel space. */ tmp = kmalloc(count,GFP_KERNEL); if (tmp=NULL)
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i2c-core.c 2002-09-29 12:46:10.000000000 -0400 renamed from i2c-core.c.orig 2002-09-29 12:32:45.000000000 -0400 +2 -1
@@ -654,7 +654,8 @@ struct inode * inode = file->f_dentry->d_inode; char *kbuf; struct i2c_client *client; - int i,j,k,order_nr,len=0,len_total; + int i,j,k,order_nr,len=0; + size_t len_total; int order[I2C_CLIENT_MAX]; #define OUTPUT_LENGTH_PER_LINE 70
Signature · 2 lines
Albert Cranford Deerfield Beach FL USA [email protected]