Fix typos

Signed-off-by: Diego Viola <diego.viola@gmail.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2134>

include/dristruct.h

@@ -79,7 +79,7 @@ typedef struct _DRIScreenPrivRec {
     DRIContextPrivPtr myContextPriv;    /* Pointer to server's private area   */
     DRIContextPrivPtr lastPartial3DContext;     /* last one partially saved  */
     void **hiddenContextStore;  /* hidden X context          */
-    void **partial3DContextStore;       /* parital 3D context        */
+    void **partial3DContextStore;       /* partial 3D context        */
     DRIInfoPtr pDriverInfo;
     int nrWindows;
     int nrWindowsVisible;

include/exa.h

@@ -585,7 +585,7 @@ typedef struct _ExaDriver {
      * @return TRUE if PrepareAccess() successfully prepared the pixmap for CPU
      * drawing.
      * @return FALSE if PrepareAccess() is unsuccessful and EXA should use
-     * DownloadFromScreen() to migate the pixmap out.
+     * DownloadFromScreen() to mitigate the pixmap out.
      */
     Bool (*PrepareAccess) (PixmapPtr pPix, int index);
 

include/picture.h

@@ -123,7 +123,7 @@ typedef pixman_format_code_t PictFormatShort;
  *  256		PolicyColor (only on PseudoColor)
  *
  * The actual allocation code lives in miindex.c, and so is
- * austensibly server dependent, but that code does:
+ * ostensibly server dependent, but that code does:
  *
  * PolicyMono	    Allocate no additional colors, use black and white
  * PolicyGray	    Allocate 13 gray levels (11 cells used)

include/xf86Module.h

@@ -144,7 +144,7 @@ typedef struct {
  */
 typedef struct {
     CARD8 majorversion;         /* module-specific major version */
-    CARD8 minorversion;         /* moudle-specific minor version */
+    CARD8 minorversion;         /* module-specific minor version */
     CARD16 patchlevel;          /* module-specific patch level */
     const char *abiclass;       /* ABI class that the module uses */
     CARD32 abiversion;          /* ABI version */