patch-2.4.27 linux-2.4.27/fs/proc/proc_misc.c

• Lines: 25
• Date: 2004-08-07 16:26:06.016402742 -0700
• Orig file: linux-2.4.26/fs/proc/proc_misc.c
• Orig date: 2003-11-28 10:26:21.000000000 -0800

diff -urN linux-2.4.26/fs/proc/proc_misc.c linux-2.4.27/fs/proc/proc_misc.c
@@ -500,12 +500,13 @@
 static ssize_t read_profile(struct file *file, char *buf,
 			    size_t count, loff_t *ppos)
 {
-	unsigned long p = *ppos;
+	loff_t n = *ppos;
+	unsigned p = n;
 	ssize_t read;
 	char * pnt;
 	unsigned int sample_step = 1 << prof_shift;
 
-	if (p >= (prof_len+1)*sizeof(unsigned int))
+	if (p != n || p >= (prof_len+1)*sizeof(unsigned int))
 		return 0;
 	if (count > (prof_len+1)*sizeof(unsigned int) - p)
 		count = (prof_len+1)*sizeof(unsigned int) - p;
@@ -519,7 +520,7 @@
 	if (copy_to_user(buf,(void *)pnt,count))
 		return -EFAULT;
 	read += count;
-	*ppos += read;
+	*ppos = n + read;
 	return read;
 }