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path: root/sound/pci/asihpi/hpioctl.c
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Diffstat (limited to 'sound/pci/asihpi/hpioctl.c')
-rw-r--r--sound/pci/asihpi/hpioctl.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
index 311499992a22..62895a719fcb 100644
--- a/sound/pci/asihpi/hpioctl.c
+++ b/sound/pci/asihpi/hpioctl.c
@@ -121,11 +121,17 @@ long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
121 phpi_ioctl_data = (struct hpi_ioctl_linux __user *)arg; 121 phpi_ioctl_data = (struct hpi_ioctl_linux __user *)arg;
122 122
123 /* Read the message and response pointers from user space. */ 123 /* Read the message and response pointers from user space. */
124 get_user(puhm, &phpi_ioctl_data->phm); 124 if (get_user(puhm, &phpi_ioctl_data->phm) ||
125 get_user(puhr, &phpi_ioctl_data->phr); 125 get_user(puhr, &phpi_ioctl_data->phr)) {
126 err = -EFAULT;
127 goto out;
128 }
126 129
127 /* Now read the message size and data from user space. */ 130 /* Now read the message size and data from user space. */
128 get_user(hm->h.size, (u16 __user *)puhm); 131 if (get_user(hm->h.size, (u16 __user *)puhm)) {
132 err = -EFAULT;
133 goto out;
134 }
129 if (hm->h.size > sizeof(*hm)) 135 if (hm->h.size > sizeof(*hm))
130 hm->h.size = sizeof(*hm); 136 hm->h.size = sizeof(*hm);
131 137
@@ -138,7 +144,10 @@ long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
138 goto out; 144 goto out;
139 } 145 }
140 146
141 get_user(res_max_size, (u16 __user *)puhr); 147 if (get_user(res_max_size, (u16 __user *)puhr)) {
148 err = -EFAULT;
149 goto out;
150 }
142 /* printk(KERN_INFO "user response size %d\n", res_max_size); */ 151 /* printk(KERN_INFO "user response size %d\n", res_max_size); */
143 if (res_max_size < sizeof(struct hpi_response_header)) { 152 if (res_max_size < sizeof(struct hpi_response_header)) {
144 HPI_DEBUG_LOG(WARNING, "small res size %d\n", res_max_size); 153 HPI_DEBUG_LOG(WARNING, "small res size %d\n", res_max_size);