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From: Faik Uygur <faikuygur@ttnet.net.tr>
To: andre@linux-ide.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] 2.5.62: /proc/ide/hpt366 returns incomplete data [7/17]
Date: Sun, 23 Feb 2003 01:03:48 +0200	[thread overview]
Message-ID: <20030222230348.GF2996@ttnet.net.tr> (raw)

This patch fixes the incomplete data return problem of /proc/ide/hpt366.
When the number of consecutive read bytes are smaller than the total
data in hpt366_get_info(), the second read() returns 0.

--- linux-2.5.62-vanilla/drivers/ide/pci/hpt366.c	Sat Feb 22 23:00:40 2003
+++ linux-2.5.62/drivers/ide/pci/hpt366.c	Sun Feb 23 00:01:09 2003
@@ -85,7 +85,7 @@
 	char *chipset_nums[] = {"366", "366",  "368",
 				"370", "370A", "372",
 				"302", "371",  "374" };
-	int i;
+	int i, len;
 
 	p += sprintf(p, "\n                             "
 		"HighPoint HPT366/368/370/372/374\n");
@@ -153,8 +153,12 @@
 		}
 	}
 	p += sprintf(p, "\n");
+
+	/* p - buffer must be less than 4k! */
+	len = (p - buffer) - offset;
+	*addr = buffer + offset;
 	
-	return p-buffer;/* => must be less than 4k! */
+	return len > count ? count : len;
 }
 #endif  /* defined(DISPLAY_HPT366_TIMINGS) && defined(CONFIG_PROC_FS) */
 



                 reply	other threads:[~2003-02-22 22:53 UTC|newest]

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