hw/gpio: Fix property accessors of the AST2600 GPIO 1.8V model

The property names of AST2600 GPIO 1.8V model are one character bigger
than the names of the other ASPEED GPIO model. Increase the string
buffer size by one and be more strict on the expected pattern of the
property name.

This fixes the QOM test of the ast2600-evb machine under :

  Apple LLVM version 10.0.0 (clang-1000.10.44.4)
  Target: x86_64-apple-darwin17.7.0
  Thread model: posix
  InstalledDir: /Library/Developer/CommandLineTools/usr/bin

Cc: Rashmica Gupta <rashmica.g@gmail.com>
Fixes: 36d737ee82b2 ("hw/gpio: Add in AST2600 specific implementation")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20191023130455.1347-2-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

diff --git a/hw/gpio/aspeed_gpio.c b/hw/gpio/aspeed_gpio.c
index 196e47c262847bb487fae6a61f1d6e6fb7ab380e..7acc5fa8e29a745968f0cd65b8049c67f9b6747f 100644 (file)
--- a/hw/gpio/aspeed_gpio.c
+++ b/hw/gpio/aspeed_gpio.c
@@ -733,13 +733,13 @@ static void aspeed_gpio_get_pin(Object *obj, Visitor *v, const char *name,
 {
     int pin = 0xfff;
     bool level = true;
-    char group[3];
+    char group[4];
     AspeedGPIOState *s = ASPEED_GPIO(obj);
     int set_idx, group_idx = 0;
 
     if (sscanf(name, "gpio%2[A-Z]%1d", group, &pin) != 2) {
         /* 1.8V gpio */
-        if (sscanf(name, "gpio%3s%1d", group, &pin) != 2) {
+        if (sscanf(name, "gpio%3[18A-E]%1d", group, &pin) != 2) {
             error_setg(errp, "%s: error reading %s", __func__, name);
             return;
         }
@@ -760,7 +760,7 @@ static void aspeed_gpio_set_pin(Object *obj, Visitor *v, const char *name,
     Error *local_err = NULL;
     bool level;
     int pin = 0xfff;
-    char group[3];
+    char group[4];
     AspeedGPIOState *s = ASPEED_GPIO(obj);
     int set_idx, group_idx = 0;
 
@@ -771,7 +771,7 @@ static void aspeed_gpio_set_pin(Object *obj, Visitor *v, const char *name,
     }
     if (sscanf(name, "gpio%2[A-Z]%1d", group, &pin) != 2) {
         /* 1.8V gpio */
-        if (sscanf(name, "gpio%3s%1d", group, &pin) != 2) {
+        if (sscanf(name, "gpio%3[18A-E]%1d", group, &pin) != 2) {
             error_setg(errp, "%s: error reading %s", __func__, name);
             return;
         }