linux-kernel - Re: [PATCH 19/30] scsi: Remove explicit casts of [kv]alloc return values in osst driver

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Message-Id: <200708240905.04994.eike-kernel@sf-tec.de>
Date:	Fri, 24 Aug 2007 09:04:58 +0200
From:	Rolf Eike Beer <eike-kernel@...tec.de>
To:	linux-scsi@...r.kernel.org
Cc:	Jesper Juhl <jesper.juhl@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	James Bottomley <James.Bottomley@...eleye.com>,
	Willem Riede <osst@...de.org>, osst-users@...ts.sourceforge.net
Subject: Re: [PATCH 19/30] scsi: Remove explicit casts of [kv]alloc return values in osst driver

Jesper Juhl wrote:
> [kv]alloc() return void *. No need to cast the return value.

> @@ -5756,7 +5756,7 @@ static int osst_probe(struct device *dev)
>  	write_lock(&os_scsi_tapes_lock);
>  	if (os_scsi_tapes == NULL) {
>  		os_scsi_tapes =
> -			(struct osst_tape **)kmalloc(osst_max_dev * sizeof(struct osst_tape *),
> +			kmalloc(osst_max_dev * sizeof(struct osst_tape *),
>  				   GFP_ATOMIC);
>  		if (os_scsi_tapes == NULL) {
>  			write_unlock(&os_scsi_tapes_lock);

Three lines later:

		for (i=0; i < osst_max_dev; ++i) os_scsi_tapes[i] = NULL;

This wants to be

os_scsi_tapes = kcalloc(osst_max_dev, sizeof(struct osst_tape *), GFP_ATOMIC);

Eike

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