From: Al Viro <viro@ftp.linux.org.uk>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Jeff Garzik <jgarzik@pobox.com>, linux-kernel@vger.kernel.org
Subject: [PATCH] bogus kfree() in ibmtr
Date: Tue, 4 Oct 2005 17:40:44 +0100 [thread overview]
Message-ID: <20051004164044.GF7992@ftp.linux.org.uk> (raw)
On several failure exits in ibmtr we end up doing kfree() on
dev->priv, with dev allocated by alloc_trdev() and ->priv never reassigned.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
----
diff -urN RC14-rc3-git4-base/drivers/net/tokenring/ibmtr.c current/drivers/net/tokenring/ibmtr.c
--- RC14-rc3-git4-base/drivers/net/tokenring/ibmtr.c 2005-08-28 23:09:44.000000000 -0400
+++ current/drivers/net/tokenring/ibmtr.c 2005-10-03 18:15:27.000000000 -0400
@@ -531,7 +531,6 @@
if (!time_after(jiffies, timeout)) continue;
DPRINTK( "Hardware timeout during initialization.\n");
iounmap(t_mmio);
- kfree(ti);
return -ENODEV;
}
ti->sram_phys =
@@ -645,7 +644,6 @@
DPRINTK("Unknown shared ram paging info %01X\n",
ti->shared_ram_paging);
iounmap(t_mmio);
- kfree(ti);
return -ENODEV;
break;
} /*end switch shared_ram_paging */
@@ -675,7 +673,6 @@
"driver limit (%05x), adapter not started.\n",
chk_base, ibmtr_mem_base + IBMTR_SHARED_RAM_SIZE);
iounmap(t_mmio);
- kfree(ti);
return -ENODEV;
} else { /* seems cool, record what we have figured out */
ti->sram_base = new_base >> 12;
@@ -690,7 +687,6 @@
DPRINTK("Could not grab irq %d. Halting Token Ring driver.\n",
irq);
iounmap(t_mmio);
- kfree(ti);
return -ENODEV;
}
/*?? Now, allocate some of the PIO PORTs for this driver.. */
@@ -699,7 +695,6 @@
DPRINTK("Could not grab PIO range. Halting driver.\n");
free_irq(dev->irq, dev);
iounmap(t_mmio);
- kfree(ti);
return -EBUSY;
}
reply other threads:[~2005-10-04 16:40 UTC|newest]
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