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ALSA: usb: fcp: Fix hwdep read ops types

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The FCP driver defined hwdep read function with ssize_t, but it should
be long due to historical reason.  This caused build errors on 32bit
archs.

Fixes: 46757a3e7d ("ALSA: FCP: Add Focusrite Control Protocol driver")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://patch.msgid.link/20250120145617.07945574@canb.auug.org.au
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Stephen Rothwell
2025-01-20 14:56:17 +11:00
committed by Takashi Iwai
parent 0ce204d3af
commit f95719b069
1 changed files with 3 additions and 3 deletions
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6
sound/usb/fcp.c
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@@ -815,13 +815,13 @@ static int fcp_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
/* not reached */
}
static ssize_t fcp_hwdep_read(struct snd_hwdep *hw, char __user *buf,
ssize_t count, loff_t *offset)
static long fcp_hwdep_read(struct snd_hwdep *hw, char __user *buf,
long count, loff_t *offset)
{
struct usb_mixer_interface *mixer = hw->private_data;
struct fcp_data *private = mixer->private_data;
unsigned long flags;
ssize_t ret = 0;
long ret = 0;
u32 event;
if (count < sizeof(event))