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fbdev: valkyriefb: Fix reference count leak in valkyriefb_init

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commit eb53368f8d6e2dfba84c8a94d245719bcf9ae270 upstream.

The of_find_node_by_name() function returns a device tree node with its
reference count incremented. The caller is responsible for calling
of_node_put() to release this reference when done.

Found via static analysis.

Fixes: cc5d0189b9 ("[PATCH] powerpc: Remove device_node addrs/n_addr")
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Miaoqian Lin 2025-10-27 16:43:37 +08:00 • committed by Greg Kroah-Hartman
commit ab258b14da
1 changed files with 2 additions and 0 deletions
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2
drivers/video/fbdev/valkyriefb.c
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@ -336,11 +336,13 @@ int __init valkyriefb_init(void)
if (of_address_to_resource(dp, 0, &r)) {
printk(KERN_ERR "can't find address for valkyrie\n");
of_node_put(dp);
return 0;
}
frame_buffer_phys = r.start;
cmap_regs_phys = r.start + 0x304000;
of_node_put(dp);
}
#endif /* ppc (!CONFIG_MAC) */