linux-kernel - Re: [PATCH] never called printk statement in ide-taskfile.c::wait_drive_not

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Date:	Mon, 18 Jun 2007 03:05:52 +0900 (JST)
From:	Masatake YAMATO <jet@...e.org>
To:	bzolnier@...il.com
Cc:	cebbert@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] never called printk statement in
 ide-taskfile.c::wait_drive_not_busy

> Please re-submit this fix in the form of a patch so I can merge it.

Here it is.


diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c
index 30175c7..aa06daf 100644
--- a/drivers/ide/ide-taskfile.c
+++ b/drivers/ide/ide-taskfile.c
@@ -238,7 +238,7 @@ EXPORT_SYMBOL(task_no_data_intr);
 static u8 wait_drive_not_busy(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = HWIF(drive);
-	int retries = 100;
+	int retries;
 	u8 stat;
 
 	/*
@@ -246,10 +246,14 @@ static u8 wait_drive_not_busy(ide_drive_t *drive)
 	 * This can take up to 10 usec, but we will wait max 1 ms
 	 * (drive_cmd_intr() waits that long).
 	 */
-	while (((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT) && retries--)
-		udelay(10);
+	for (retries = 0; retries < 100; retries++) {
+		if ((stat = hwif->INB(IDE_STATUS_REG)) & BUSY_STAT)
+			udelay(10);
+		else
+			break;
+	}
 
-	if (!retries)
+	if (stat & BUSY_STAT)
 		printk(KERN_ERR "%s: drive still BUSY!\n", drive->name);
 
 	return stat;
-
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