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authorTakashi Iwai <tiwai@suse.de>2013-10-24 16:06:32 +0200
committerMatthew Garrett <matthew.garrett@nebula.com>2013-11-20 18:51:15 -0500
commitcab6661344f14a09d7aecdf821a40f68ef9b18cc (patch)
tree70f8e416b5af1ff6e3a31d6af483b3c39d54a9e6
parentab0431059ed0d0e3a9e532ad0488ada25021249d (diff)
thinkpad_acpi: Fix build error when CONFIG_SND_MAX_CARDS > 32
SNDRV_CARDS can be specified via Kconfig since 3.11 kernel, so this can be over 32bit integer range, which leads to a build error. Cc: <stable@vger.kernel.org> [v3.11+] Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
-rw-r--r--drivers/platform/x86/thinkpad_acpi.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index a5e99d749246..58b0274d24cc 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -6438,7 +6438,12 @@ static struct ibm_struct brightness_driver_data = {
#define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control"
#define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME
-static int alsa_index = ~((1 << (SNDRV_CARDS - 3)) - 1); /* last three slots */
+#if SNDRV_CARDS <= 32
+#define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1)
+#else
+#define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1)
+#endif
+static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */
static char *alsa_id = "ThinkPadEC";
static bool alsa_enable = SNDRV_DEFAULT_ENABLE1;