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authorJeroen Hofstee <jeroen@myspectrum.nl>2014-06-11 23:12:28 +0200
committerTom Warren <twarren@nvidia.com>2014-06-19 09:18:05 -0700
commitc42ff090e41d4b9e50faa727bac490ee790f82f4 (patch)
tree3635d1f0f333229ba6fbaa87281f7e2e86777a66 /arch
parent0a26e1d6c394aacbf1153977b7348d1dff85db3f (diff)
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tegra20: display: fix checking of return value
The calling code seems a bit in doubt about the return value of fdtdec_lookup_phandle. Since it returns a negative value on error (and fdt_node_offset_by_phandle as well), check for that. cc: Wei Ni <wni@nvidia.com> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl> Tested-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/cpu/armv7/tegra20/display.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/tegra20/display.c b/arch/arm/cpu/armv7/tegra20/display.c
index 488f0c6..fd77f3f 100644
--- a/arch/arm/cpu/armv7/tegra20/display.c
+++ b/arch/arm/cpu/armv7/tegra20/display.c
@@ -328,7 +328,7 @@ static int tegra_display_decode_config(const void *blob,
rgb = fdt_subnode_offset(blob, node, "rgb");
config->panel_node = fdtdec_lookup_phandle(blob, rgb, "nvidia,panel");
- if (!config->panel_node < 0) {
+ if (config->panel_node < 0) {
debug("%s: Cannot find panel information\n", __func__);
return -1;
}