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authorTimur Tabi <timur@freescale.com>2008-08-20 10:29:09 -0500
committerKumar Gala <galak@kernel.crashing.org>2008-08-20 23:58:12 -0500
commit61a4e9e91dd3916ef91aa4899b7271bba0248677 (patch)
treef5efdda2417abec232276f011c4fb422959994e6 /arch/powerpc/sysdev/qe_lib/ucc_fast.c
parentd27a736c7a62c3451e389aa8e0dfc64dab119b9b (diff)
powerpc: fix memory leaks in QE library
Fix two memory leaks in the Freescale QE library: add a missing kfree() in ucc_fast_init() and ucc_slow_init() if the ioremap() fails, and update ucc_fast_free() and ucc_slow_free() to call iounmap() if necessary. Based on a patch from Tony Breeds <tony@bakeyournoodle.com>. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/sysdev/qe_lib/ucc_fast.c')
-rw-r--r--arch/powerpc/sysdev/qe_lib/ucc_fast.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_fast.c b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
index 1aecb075a72..25fbbfaa837 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_fast.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
@@ -208,6 +208,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
uccf->uf_regs = ioremap(uf_info->regs, sizeof(struct ucc_fast));
if (uccf->uf_regs == NULL) {
printk(KERN_ERR "%s: Cannot map UCC registers\n", __func__);
+ kfree(uccf);
return -ENOMEM;
}
@@ -355,6 +356,9 @@ void ucc_fast_free(struct ucc_fast_private * uccf)
if (uccf->ucc_fast_rx_virtual_fifo_base_offset)
qe_muram_free(uccf->ucc_fast_rx_virtual_fifo_base_offset);
+ if (uccf->uf_regs)
+ iounmap(uccf->uf_regs);
+
kfree(uccf);
}
EXPORT_SYMBOL(ucc_fast_free);